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Images: Nest Bedding. Shown size and configuration may vary.

Nest Bedding

Sparrow Signature Hybrid

Name: Nest Bedding Sparrow Signature Hybrid
Brand: Nest Bedding

Best for: Swap-the-feel pillow top

A 14″ coil hybrid in Plush, Medium or Firm; the zip cover lets you change the comfort layer later, and King sizes can be split.

Good to know: Owners of the older Alexander version often reported early sagging.

Type: Hybrid
Height: 14″
Sizes: 7 ready-made
Certified: CertiPUR-US
Weight (queen): 115 lb

Pick it if

You sleep hot
You share the bed
You sit on the edge or use all of it

From independent reviewers’ findings, credited below.

Your size

36 × 84 in · 14″ tall

Where to get it

nestbedding.comQueen $2,229 (sale price) · checked Oct 17 See price

Returns: 365 nights from delivery; 30-night adjustment period before an exchange or return; free returns Details

We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.

The short version

Worth a look if

Swap-the-feel pillow top

Good

A 14″ coil hybrid in Plush, Medium or Firm; the zip cover lets you change the comfort layer later, and King sizes can be split.
4 firmness choices: Plush, Medium, Firm, Internal split (King and Cal King): Med/Firm, Firm/Plush, Plush/Med
Trial: 365 nights from delivery; 30-night adjustment period before an exchange or return; free returns
Height: 14″

Think about

Owners of the older Alexander version often reported early sagging.
Several Alexander Signature owners said it softened or sagged, from within a few months up to about three years, and one said a warranty claim didn't resolve it.
Two owners said it slept hot.
No owner reviews we could verify yet

Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.

What owners say

From owners of a related model A small set of real reviews, each linked to its source. Not a star rating.

Small sample · 6 owner reports

GoodBed owners of the earlier Alexander Signature Hybrid (2015-2020) mostly reported early softening or sagging.

What people liked

No supported praise summary in the sample.

What to weigh up

Several Alexander Signature owners said it softened or sagged, from within a few months up to about three years, and one said a warranty claim didn't resolve it. Source ↗
Two owners said it slept hot. Source ↗

What independent reviewers found

NapLab (Aug 2026): Medium rated 5/10 and fits most positions and weights; Firm for back/stomach sleepers near 300 lbs, Plush for light side sleepers. Sheds heat quickly, low motion transfer, good sitting edges. Medium tested on the older 6-inch coil unit (Nest switched to 8-inch in April 2026); formerly the Alexander Signature Hybrid. Site discloses affiliate commissions. Read it ↗

Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.

Sources & sample limits

6 GoodBed owner reviews of the Alexander Signature Hybrid, 2019-2022, page 1 Sample: 6 owner reports.

All reviews are of the 2015-2020 Alexander Signature; none on page 1 named the renamed Sparrow. Reddit not found in search.

Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.

Every size it comes in

Bunk (36 × 84)36 × 84 in14″Twin38 × 75 in14″Twin XL38 × 80 in14″Full · 54-inch54 × 75 in14″Queen60 × 80 in14″King76 × 80 in14″California king72 × 84 in14″

Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it.

Price for every size

From the maker’s site on Oct 26, 2026. Prices change often, so check before you buy.

Size	Inches	Price
Twin	38 × 75	$1,205	See it
Split CK 1-side	36 × 84	$1,320	See it
Twin XL	38 × 80	From $1,320	See it
Full	54 × 75	$1,665	See it
Queen	60 × 80	$2,229	See it
Cal King	72 × 84	$2,549	See it
King	76 × 80	$2,549	See it

Video reviews

Sparrow Signature Hybrid · Review

Nest Bedding Sparrow Review - 10 Real World Tests

NapLab · YouTube ↗

Sparrow Signature Hybrid · Review

Nest Sparrow Signature Hybrid Mattress Review (Is It Worth It?)

CNET Home · YouTube ↗

Sparrow Signature Hybrid · Review

Nest Sparrow Expert Mattress Review by GoodBed

GoodBed · YouTube ↗

How it compares

Beside the most similar mattresses from other brands.

	Sparrow Signature HybridNest Bedding	Elite HybridBear	Elite Ultra HybridBear	ClassicBig Fig
Type	Hybrid	Hybrid	Hybrid	Hybrid
Queen price	$2,229	$1,599	$2,129	$2,049
Height	14″	14″	13.5″	12.5″
Trial	365 nights	365 nights	365 nights	120 nights
Odd sizes	1	None	None	None
Expert reviews	1	3	2	4

What’s inside

11in quilted THERMIC phase-change cover with 4lb gel memory foam
23in Energex foam (Plush 2.5lb/10 ILD, Medium 2.5lb/22 ILD, Firm 2lb/30 ILD)
31in SmartFlow support foam, 1.5lb/30 ILD
48in pocketed coils: 13.75-gauge edge, 14.5-gauge support (Queen 775, King 961)
51in 3lb base support foam

Feel: Plush, Medium, Firm, Internal split (King and Cal King): Med/Firm, Firm/Plush, Plush/Med
Height: 14″
Custom sizes: Not offered for this model

Complete the bed

Odd sizes need everything else in the same inches. Here’s what we have for this mattress’s odd sizes.

Bunk (36 × 84) · 36 × 84

Returns and ordering

Trial and returns

365 nights from delivery; 30-night adjustment period before an exchange or return; free returns

Before you order

Measure inside the frame, not the old mattress
Check clearance above for the height you pick
Make sure your base supports it
Buy sheets in the same exact size

Questions

What is it made of?

14in pillow-top hybrid, previously sold as the Alexander Signature Hybrid. A quilted THERMIC phase-change cover with 4lb gel memory foam sits over 3in of Energex foam (the layer that sets Plush, Medium or Firm), a 1in SmartFlow transition foam, 8in of pocketed coils with a 13.75-gauge reinforced edge (up to 961 coils in King) and a 1in base foam. The zippered cover lets you swap the comfort layer; King and Cal King can have a different feel on each side.

How firm is it?

Plush, Medium, Firm, Internal split (King and Cal King): Med/Firm, Firm/Plush, Plush/Med That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

7 sizes, 14″. See every size. Confirm your exact size and height with the seller.

Are the reviews about this exact mattress?

From owners of a related model. All reviews are of the 2015-2020 Alexander Signature; none on page 1 named the renamed Sparrow. Reddit not found in search.

Where did this information come from?

Checked 2026-10-17. Specs and terms can change.