What Is a Trundle Bed? 

Why Trust Best Mattress Brand

Our proficient team of sleep science coaches, engineers, and product evaluators rigorously inspect hundreds of mattresses using our unique product methodology. Each article is scrutinized for precision, citing only credible sources. Systematically reviewing our content and recommendations, we align with the latest scientific literature and expert insights. Our top-rated mattresses have been personally evaluated and highly rated.

Trundle beds trace their roots to the 16th century. They have evolved dramatically from their oak-framed beginnings. Today’s versions are flexible sleeping solutions that slide smoothly under regular bed frames and support weights up to 250 pounds. The market offers trundle beds at every price point. Simple designs start at $100, while premium models can cost up to $5,000 to match different budgets and priorities.

These space-smart beds work best in children’s rooms and tight spaces. Their practical design makes them a natural fit for homes of all sizes. Modern trundle beds come in various materials and styles, including daybeds and bunk bed combinations, which makes them a versatile sleeping solution for today’s homes.

Understanding Trundle Bed Basics

A trundle bed has two separate sleeping areas – a regular bed frame on top and a rolling mattress platform that slides underneath. This clever design saves space and gives you both storage and an extra bed in one piece.

What is a trundle bed?

The bed’s lower mattress sits on wheels and slides right under a normal bed frame. You can hide the extra bed during the day, which makes it perfect for rooms where you need to save space. These beds come in different sizes, but twin and full-size are the most popular choices.

How do trundle beds work?

These beds roll smoothly on caster wheels or ball-bearing slides. The bottom bed glides out easily when you need it, and wheel locks keep it firmly in place. Some models have a special pop-up feature – just push a lever and watch the lower bed rise up to match the main bed’s height thanks to a scissor-like mechanism.

Common components and features

Here’s what makes up a trundle bed:

• A standard-height main bed frame
• A platform on wheels or drawer-style frame
• Caster wheels that lock in place
• Support bars or slats to hold the mattress

Many models include bonus storage, like built-in shelves and drawers. The trundle part needs a thinner mattress – about 8 inches thick – to fit properly underneath. Today’s designs range from basic pull-out styles to fancy pop-up versions that create split king beds when raised.

Trundle Bed Mattress Sizes

Most trundle beds are single-sized, with mattresses that are about 15-20 cm (6-8 inches) thick.

If the trundle bed has a pop-up mechanism, the two beds together can create a king or super king-size sleeping space.

Common trundle bed sizes:

The underbed is sometimes smaller than the main bed to fit underneath. If the mattress sits inside a frame, the bed’s total size will be larger than the mattress itself.

Standard bed sheets should fit, but if the underbed is smaller, you may need custom-sized sheets. Avoid bed skirts or valances, as they can block airflow to the underbed. Always check measurements before buying.

Types of Trundle Beds Available

Modern trundle beds are available in various configurations that serve specific needs and spaces. Simple roll-out models to sophisticated pop-up designs give you multiple sleeping options.

Standard pull-out trundle designs

The most common trundle bed setup has a roll-out design with casters or wheels. We designed these models with a platform attached to a metal frame that slides smoothly beneath the main bed. The roll-out design can support heavy weight and works well for occasional use. Some versions add storage drawers under the lower mattress to create a solution that works for both sleeping and storage.

Pop-up trundle variations

Pop-up trundle beds show advanced design features that let the lower bed rise to match the main mattress height. This clever mechanism turns two twin beds into a king-sized sleeping surface. The frame uses a special lifting mechanism that raises the lower mattress smoothly, making it great for regular guest stays.

Specialty trundle configurations

Today’s trundle bed designs include several unique variations:

• Daybed Trundles: Work as a sofa during the day and turn into sleeping space at night – perfect for multipurpose rooms
• Bunk Bed Trundles: Mix traditional bunk bed design with an extra pull-out bed to fit three or more sleepers
• Captain’s Bed: Combines storage drawers and a trundle mattress to maximize space
• Smart Trundles: Add modern technology with adjustable settings, integrated lighting, and built-in charging stations

These specialty designs typically use wood, metal, or upholstered frames. Some models also come with customizable options in size and configuration. The frame materials range from classic wooden structures to modern metal designs that affect both durability and style.

Key Factors in Choosing a Trundle Bed

Choosing the right trundle bed needs you to think over several practical factors that affect both comfort and functionality. Room space and budget limits are vital parts of making a smart choice.

Space requirements and room layout

Smart space planning begins with measuring the available floor area. When the trundle is fully extended, you need two feet of clearance around the bed. Looking beyond the main bed’s size is essential. Homeowners should calculate the total space needed when the trundle is pulled out.

The room layout must work well with doorways, closets, and furniture without creating obstacles. This plan will ensure a smooth operation and eliminate the need to move furniture each time you use the trundle.

Weight capacity and durability considerations

The frame material and construction quality determine a trundle bed’s structural strength. The lower mattress on most trundle beds can hold up to 250 pounds. Some premium models can support more weight. The frame material substantially affects how long it lasts – solid wood and metal frames are the foundations of superior strength and longevity.

These features are a great way to get better safety and durability:

• Smooth edges to prevent injuries
• Secure locking mechanisms
• Sturdy construction for regular use
• High-quality materials for extended lifespan

Price range and budget planning

Materials, features, and brand reputation affect a trundle bed’s cost. Simple models start at USD 300, while premium options can reach USD 3,000. Your budget should cover these components:

• Frame: 30-40% of total budget
• Mattress: 50-60% of total budget
• Bedding: 10% of total budget

Note that extra costs, like delivery fees, range from USD 50 to USD 200. Optional warranty plans cost between USD 50 and USD 300. Quality materials and construction often provide better value over time despite higher upfront costs.

Essential Mattress Considerations

The right mattress is a vital part of getting the most from your trundle bed setup. These beds need special attention to size and materials because of their unique design.

Ideal mattress thickness for trundle beds

Your trundle mattress needs to be 6 to 8 inches thick. This size will give a smooth pull-out action and keep you comfortable. The frame’s design sets the maximum thickness limit – anything more could stop the trundle from working properly. The main bed gives you more options for mattress height. A balanced look comes from keeping both mattresses proportional.

Recommended mattress types

Trundle beds work well with several mattress types that each bring their own benefits:

• Memory Foam: Gives great pressure relief even when thin
• Latex: Built to last and breathes naturally
• Hybrid: You get coil support plus foam comfort
• Air Mattresses: Light on your wallet and easy to move

Innerspring mattresses don’t work well because they’re too tall and they need box springs. Memory foam is perfect for trundles because it supports you well, even in thinner sizes.

Mattress compatibility issues

A standard twin mattress is 38 x 75 inches, but some trundle frames are shorter at 38 x 72 inches. Twin XL mattresses at 38 x 80 inches are too long for most trundle frames. You should check your measurements carefully before buying.

This is a big deal as it means that mattress quality affects how well you sleep, even with thinner options. Quality materials can support you properly in slimmer profiles. Here’s what to look for:

1. How much weight it needs to hold
2. How well does it handle regular movement
3. Whether it bounces back after storage

Temperature control matters too, since some mattresses work better in tight spaces. Gel-infused memory foam runs 1-2 degrees cooler than regular memory foam. That’s perfect for trundles where air might not flow freely.

Quality materials are worth the investment if you use your trundle often. Your mattress should handle regular movement and compression while keeping its support. Pop-up trundles work best with standard twin mattresses that are the same height when you make them into one big bed.

Read Also: Toddler Bed vs. Twin Bed

Safety and Maintenance Tips

Your trundle bed’s performance and longevity depend on good maintenance and following safety guidelines. You should know the weight restrictions and maintenance protocols to avoid problems and make your bed last longer.

Weight limits and usage guidelines

The lower mattress of most trundle beds can hold up to 250 pounds. This limit affects who can sleep on the bed safely and comfortably. Solid pine wood construction offers better strength, and some models can support up to 400 pounds per bed.

Safety features to check include:

• Rounded edges to prevent injuries
• Metal support bars for structural integrity
• Metal-on-metal bolt connections
• Strong plywood slats for secure support

Proper weight distribution is crucial for the bed’s structural integrity. To prevent damage, users should follow the manufacturer’s weight limits.

Regular maintenance requirements

A good maintenance routine helps keep your trundle bed working well. You should check these key areas regularly:

• Frame Joints: Look for loose connections and tighten screws and bolts as needed. Wood glue can help reinforce connections for better stability.
• Caster Maintenance: The wheels need regular checks to ensure they roll smoothly. Replace any damaged or worn-out casters right away to protect the frame. Moving parts need proper lubrication to work smoothly.
• Mattress Care: Clean your mattress regularly and rotate it every three to six months to prevent uneven wear. Steam cleaning works well to keep upholstered parts fresh.

Common troubleshooting solutions

Quick fixes prevent small issues from becoming big problems. You need professional help if you notice:

• Major structural problems
• Wheels that keep malfunctioning
• Damaged upholstery

Adding plywood support over existing slats can help with sagging. All the same, a worn-out mattress might need replacement.

The hardware needs proper maintenance to work well long-term. A gentle shake test helps find loose fasteners that cause instability. Simple tools like screwdrivers and pliers can fix spring mechanisms that aren’t working properly.

You might need professional repairs for:

• Warped frame components
• Structural damage
• Complex mechanism failures

Good cleaning goes beyond surface care. Anti-allergen mattress covers protect against dust and other particles while letting the mattress breathe. Waterproof covers work great in children’s rooms for extra protection.

FAQs about What is a trundle bed?

Can You Use a Trundle Bed Every Day?

Trundle beds have a thinner frame and mattress so that one bed can slide under the other. Because of this, they are generally less comfortable and durable than regular beds, making them unsuitable for everyday use.

You can improve comfort by upgrading the mattress, but if you plan to push both beds together, they should be the same height. A deeper mattress may not fit under the main bed, and a thinner base may not provide enough support for a heavier mattress. Using a trundle bed as a seating area isn’t a good idea either, as sitting on the edge can strain the mattress and cause damage.

Are Trundle Beds Good for Adults?

Trundle beds use thin, lightweight mattresses on a shallow frame, making them less comfortable and not ideal for heavier weights. Some underbeds are smaller than the main bed, which may not provide enough space for an adult.

If you want to make a trundle bed more comfortable, you can upgrade the main mattress, but the frame must be strong enough to support it. If you want both beds at the same height, the mattresses should match. However, a thicker mattress might not fit under the main bed.

Memory foam mattresses (15-20 cm deep) can be a good option since they provide better support and pressure relief. Ensure good air circulation under the bed to prevent moisture buildup.

Trundle beds are generally not suitable for people over 102 kg (16 stone) as they may not provide enough support. They are more popular for kids since they are lighter and don’t need as much support. Despite their downsides, trundle beds are more comfortable for guests than sofa beds, futons, or air mattresses.

Do Trundle Beds Need Assembly?

Most trundle beds require some assembly, taking about 20-30 minutes, depending on the design. Beds with built-in storage may take longer to set up.

Divan-style trundle beds need little assembly—usually just removing packaging and safety straps. Many retailers offer assembly services for an extra fee, which includes setting up the bed and disposing of packaging.

Are Trundle Beds Easy to Move?

The underbed usually has wheels or castors, making it easy to slide in and out. Some trundle beds also have foldable legs to raise the underbed to the same level as the main bed.

There is typically a button or lever to release the legs, making lifting easier. Since trundle mattresses are lightweight, they are easier to move. However, some people may find lifting the under-bed awkward or heavy, so getting help can make the process easier.

What Is the difference between a Trundle Bed and an Ottoman Bed?

A trundle bed is a low bed stored under a main bed that can be pulled out for extra sleeping space. An ottoman bed has a lifting base with hidden storage underneath. Both save space but serve different purposes—trundles for extra sleeping and ottomans for storage.

Conclusion

Trundle beds are a great way to save space while providing a comfortable place to sleep. They started as simple designs but now come in many styles, from basic pull-out versions to pop-up models that create larger beds. Before getting a trundle bed, consider important factors like available space, weight limits, and the right mattress. Regular safety checks and proper care will help keep the bed in good condition for years.

These beds are perfect for kids’ rooms, guest areas, or any space where extra sleeping arrangements are needed. If chosen wisely and maintained well, a trundle bed can be a valuable and practical addition to any home.