Serta Heated Mattress Pad Twin XL, 10 Heat Settings

The Serta Heated Mattress Pad is a Twin XL electric bed pad with 10 heat settings and a claimed 1–12-hour auto-shutoff timer. Its deep-pocket elastic fit and machine-washable care suit buyers seeking adjustable bed warmth, though the listing gives conflicting mattress-depth claims.

At a glance

Ten heat settings let users choose among multiple warmth levels.
The listing describes a 1–12-hour shut-off timer adjustable in one-hour increments.
All-elastic deep-pocket design is described as fitting mattresses up to 18 inches thick.
Machine-washable care is listed for the pad.

Price

$64.49Save 15%

Reference price: ~~$75.99~~

Price checked: Nov 14, 2026

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Often bought together

Serta Heated Mattress Pad Twin XL - Deep Pocket, 10 Heat Settings, Auto Shut Off, ETL Certified, Machine Washable, White

$134.67

Pros and cons

Pros

Twin XL sizing and an elastic deep-pocket construction target a specific bed size and deeper mattresses.
Ten heat settings and a timer with one-hour increments offer adjustable warmth and shutoff timing.
Machine-washable care is stated in the listing.

Cons

The listed material is not water resistant, so it is not described as spill protection.

Technical specifications

12 specifications

Identity
Brand	Serta
Model	Heated Mattress Pad Twin XL Size - Electric Mattress Pad, 10 Heat Setting Controller,
Size	Twin XL
Color	White

Heating and fit
Heat settings	10
Auto shut-off	1-12 hour auto shut off
Listed dimensions	39"W x 80"L plus 15"D
Power cord length	6ft

Materials and care
Material	Top: Microfiber; Filling: Light Bonded Polyfill; Bottom: Non-woven Fabric
Care	Machine Wash
Water resistance listed	Not Water Resistant

Dimensions and installation
Weight listed	3.9 pounds

What to know before buying

Listing details to confirm

The listing is inconsistent about fit: one detail says up to 17 inches, while product copy says up to 18 inches. It also calls the pad a mattress protector and describes spill protection, but the material detail says it is not water resistant. Confirm mattress fit and do not rely on it for spill protection. Keep the controller uncovered during use to avoid overheating. The 1–12-hour timer is a listing claim.

What’s in the box

Included

Heated mattress pad
Controller

Who is it for?

A good fit for

Twin XL bed owners looking for a heated pad with multiple heat settings.
Buyers wanting a deep-pocket elastic fit, subject to confirming their mattress depth.
People who prefer machine-washable bedding and an adjustable shut-off timer.

Less suited to

Those needing a water-resistant pad for spills or pet accidents.
Buyers whose mattress is deeper than the fit confirmed for this listing.

Serta Heated Mattress Pad Twin XL, 10 Heat Settings · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 1,577 ratings

5 stars75%75%
4 stars10%10%
3 stars5%5%
2 stars4%4%
1 star6%6%

Customer feedback describes quick, even warmth and comfortable use, including with a light blanket, while fit over deep corners is also mentioned positively. The supplied comments are mixed on controls and reliability, including reports of unexpected shutoff. Those points matter for a pad whose listing offers 10 heat settings and a timer, but the feedback does not establish how frequently these experiences occur or explain their causes.

Positive themes

Customer feedback highlights quick, even warmth and comfortable sleep.
Some customers report that the pad fits well over deep corner pockets.

Mixed feedback

Customer feedback is divided on the temperature controls, with both favorable and unfavorable reactions.
Some feedback appreciates the automatic shutoff while other comments report unexpected shutoffs.