Does it work with a memory foam mattress?

Yes. It is described as a base for innerspring, memory foam and combination mattresses.

Do I need a bed frame?

Yes. The box spring is a foundation only; a bed frame and mattress are sold separately.

It is 9 inches high, a high-profile foundation that raises the mattress.

Does it need tools to assemble?

No. Setup is designed to be completed without tools.

Can it be folded for storage?

Yes. The steel frame folds up for moving or storing.

Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring

Best price now

$49.00at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring

Best price now

$49.00at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $49.00 at Walmart on Nov 12.

Our take on the Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring

The Mainstays 9 in Twin High Profile Smart Metal Box Spring is a steel foundation for a Twin mattress, standing 9 inches tall so it raises the bed and adds height under the mattress. The frame folds for storage and transport, and it is designed to go together without tools. It works under innerspring, memory foam or combination mattresses. Against wooden box springs it is lighter and folds flat, but it is a plain foundation with no slats or cover, and the mattress and bed frame are sold separately.

Best forTwin beds that need extra heightMemory foam or hybrid mattress ownersSmall rooms and apartmentsShoppers who move or store the bed often

Pros

9-inch height raises the mattress noticeably
Steel frame is sturdy for a Twin
Folds up for moving and storage
Tool-free assembly
Works with foam, innerspring and hybrid mattresses

Cons

Mattress and bed frame sold separately
No cover or fabric finish
Metal can shift or squeak if bolts loosen
High profile may not suit low bed frames

Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring prices at every store

WalmartNew
In stock
$49.00Free shippingChecked Nov 12
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What reviewers say

4.4 / 54,211 ratings

Owners rate it well overall, calling it sturdy and easy to put together. Complaints center on assembly instructions and occasional noise or wobble after some use.

What people mention

SturdinessPraisedOwners say the steel frame holds up well under a Twin mattress.
AssemblyMixedMany find setup quick without tools, but some say the instructions are unclear.
NoiseCriticisedA few owners report squeaking or wobble after the frame loosens.
HeightPraisedBuyers like the 9-inch rise for getting in and out of bed.
StoragePraisedThe folding frame is easy to move and tuck away.

About the Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring

This Mainstays Twin box spring is a 9-inch high-profile foundation for a Twin-size bed. It is built on a steel frame.

The frame folds up, so it can be moved or stored when it is not in use. Setup is designed to be completed without tools.

The steel construction serves as a base for innerspring, memory foam, or combination mattresses. Mattresses and a bed frame are sold separately.

Bed size: Twin
Height: 9 in, high profile
Material: Steel frame
Color: Black
Assembly: Designed for setup without tools
Folding: Frame folds up for moving or storage
Mattress types: Innerspring, memory foam, or combination
Quantity: 1
Not included: Mattress and bed frame

Specifications

bed_size: TwinSource
multipack_quantity: 1Source
color: BlackSource
size: TwinSource

Questions and answers

Does it work with a memory foam mattress?: Yes. It is described as a base for innerspring, memory foam and combination mattresses.
Do I need a bed frame?: Yes. The box spring is a foundation only; a bed frame and mattress are sold separately.
How tall is it?: It is 9 inches high, a high-profile foundation that raises the mattress.
Does it need tools to assemble?: No. Setup is designed to be completed without tools.
Can it be folded for storage?: Yes. The steel frame folds up for moving or storing.
Where is the Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring cheapest?: At Walmart, for $49.00, as of our latest check.
What do buyers say about the Mainstays 9 in Twin High Profile Easy Assembly Smart Metal Box Spring?: Rated 4.4 out of 5 from 4,211 ratings.