We’re reader supported. If you make a purchase using the links included, we may earn commission at no extra cost to you!

comparison

Allswell Supreme vs BedInABox Tranquillium

Easily compare the BedInABox Tranquillium vs Allswell Supreme Mattresses side-by-side.

Latest Promotions
See website
See offer
Limited Time Up to 25% off* Mattresses, bundles & more. Plus, free pillows with select orders. *Excludes the Essential mattress. Now through 5/6
See offer

Essential Mattress Info

Brand
AllswellBedInABox
Mattress Type
Hybrid (coils and foam)Memory foam
Prices
Video

Trial & Warranty

Trial Period
Icon check markIcon check mark
Trial Period (nights)
100120
Warranty Length (years)
1020

Firmness Options

One Firmness Fits All?
Icon check markIcon check mark
Adjustable Firmness
Icon timesIcon times
Half-Half Firmness
Icon timesIcon times
Selectable Firmness
Icon timesIcon times
Flippable / Reversible Firmness
Icon timesIcon times
Firmness Info

That just-right medium-firm feel. Rated a 4.5 to 6.5 on the very unscientific firmness scale.

A firmer and supportive feel.

Mattress Construction

Materials Overview

The Supreme mattress by Allswell is the best in their lineup, constructed of the following layers:

  • Quilted Cover + Euro Top
  • Graphite & Copper Gel Infused Memory Foam
  • Energex™ Foam
  • Quantum Edge Individually Wrapped Coils.

A 3-layer construction:

  • 3" 3lb Density CoolRest® Memory Foam Infused with Liquid Gel
  • 2" Pluralux Foam
  • 7" 2lb Density Sure Align Support Foam
  • Smooth Knit Cover.

Comfort Info

Stay asleep with individually-wrapped coils which help minimize motion transfer.

3 lb density memory foam rebounds (takes it shape) quicker making it easier to change positions.
The TENCEL® cover is a performance fabric like no other, absorbing moisture completely and naturally, creating a cooler and more comfortable sleep. With more breathability than cotton, and a softer hand than silk, TENCEL® can be found anywhere from athletic wear to luxurious bedding. Nothing is dreamier than going to sleep on a bed made with TENCEL® fibers.

Support Info

Two-sided edge support with Reinforced Quantum Edge - use the whole sleeping surface and easily get in and out of the bed.

Our CoolRest™ gel advanced memory foam quickly conforms to your body for pressure relief and support without letting you sink too far into the mattress.

Comfort Specs

Cooling graphite and copper gel layer absorbs and transfers heat away from the body.

Open cell memory foam increases air flow, contributing to a cooler sleep.
Sure Align foam works in tandem with CoolRest® Gel memory foam and provides perfect support for long lasting comfort.

Support Specs

Energex™ foam provides pressure relief over a wide range of temperature.

CoolRest® Gel memory foam perfectly contours to your body providing improved pressure relief to reduce tossing & turning.
Sure Align foam designed to support & correctly align your spine so you can sleep better.

Fabric Specs

Quilted top panel woven with our signature A. This is a Euro top mattress with two layers of high-performance memory foam underneath its plush quilted surface which makes for a supreme sleep experience.

The TENCEL® cover offers unique moisture management properties - absorbs 50% more moisture than cotton, making it a highly effective performance fabric. Rapid absorption of moisture proves most effective in inhibiting bacterial growth naturally, without adding any chemicals.

Manufactured in
United States

Suitability

Side Sleepers
Icon check markIcon check mark
Back Sleepers
Icon check markIcon check mark

Size & Weight

Twin
Icon check markIcon check mark
Twin Dimensions
75 x 39 x 14 "75 x 38 x 12 "
Twin Weight (lb)
5653
Twin XL
Icon check markIcon check mark
Twin XL Dimensions
80 x 39 x 14 "80 x 38 x 12 "
Twin XL Weight (lb)
5962
Full
Icon check markIcon check mark
Full Dimensions
75 x 54 x 14 "75 x 54 x 12 "
Full Weight (lb)
7876
Queen
Icon check markIcon check mark
Queen Dimensions
80 x 60 x 14 "80 x 60 x 12 "
Queen Weight (lb)
9290
King
Icon check markIcon check mark
King Dimensions
80 x 76 x 14 "80 x 76 x 12 "
King Weight (lb)
116113
Cal King
Icon check markIcon check mark
Cal King Dimensions
84 x 72 x 14 "84 x 72 x 12 "
Cal King Weight (lb)
116113

Certifications & Sustainability

Certifications
CertiPur-US®
CertiPur-US®
CertiPur-US®
Other Certification Info

Delivery

Delivery Cost
FREEFREE
Delivery Info

Allswell offers free ground shipping to the 48 contiguous US states & DC.

Typically, orders are shipped within two business days of receipt from our warehouse in Johnson City, TN via FedEx Ground. Delivery is usually 1-5 days depending on where you live.

Prices
Latest Promotions
See website
See offer
Limited Time Up to 25% off* Mattresses, bundles & more. Plus, free pillows with select orders. *Excludes the Essential mattress. Now through 5/6
See offer