Serta Perfect Sleeper Norchester 12-inch Firm Twin-size Mattress

by Serta
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ITEM# 23979972

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ITEM#: 23979972

Comfort Guaranteed

The Norchester Firm mattress features an extra-thick layer of Serta's EverCool Plus Memory Foam and premium 886 Custom Support Firm Individually Wrapped Coil Innerspring. It is designed with a unique set of features to help solve 5 common sleep problems:

  • 1. Helps reduce tossing and turning with EverCool Plus Memory Foam
  • 2. Encourages proper back support and alignment with Serta's 886 Custom Support Firm Individually Wrapped Coil Innerspring
  • 3. Promotes a balanced sleep temperature with an overall mattress design that helps promote airflow
  • 4. Minimizes impact from partner movement with a premium support system and advanced foams designed for motion isolation
  • 5. Resists sagging and edge roll-off with Serta's ComfortLast Construction and Best Edge Foam Encasement??

This mattress also features a layer of Serta's PillowSoft Foam, an extra-soft foam that gently contours the body to provide enhanced cushioning.

  • Mattress Top: Tight Top
  • Recommended Foundation Type: Platform, Box Spring, Adjustable
  • Delivery Method Disclaimer: White Glove
  • Product Features: Cooling, Antimicrobial
  • Thickness: 12 Inch
  • Mattress Type: Innerspring, Memory Foam, Pocketed Coil Spring
  • Mattress Support: Medium
  • Size: Twin

  • Twin-size: 12 inches high x 39 inches wide x 75 inches long

Please note: Options of excessive weight or bulk will be shipped via Freight carrier and our Oversized Item Delivery/Return policy will apply. Please click here for more information.

White Glove Mattress deliveries require a 4-hour window to complete delivery; this includes carrying the mattress inside, unpacking it, simple set-up in the designated room, and removal of packing materials. Please check here for our most up-to-date White Glove information.


Mattress Type Innerspring, Memory Foam, Pocket Spring
Thickness 12 Inch
Comfort Level Medium
Mattress Top Tight Top
Product Features Platform Friendly, Risk-free Trial
Dimensions See Details
Warranty 10 year Limited Manufacturer
Model Number 500136041-1010
Country of Origin United States

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Leaves our warehouse in 1-10 business days. *

1-4 week delivery after the item ships:**

Delivered by freight carrier. See Oversized Item Delivery Policy.

Mattress Return Policy:

Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
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This item cannot be shipped to Alaska or Hawaii. More details

Oversized Item Delivery Policy:

This item will be shipped via freight carrier to your home, excluding rural routes, remote areas not in close proximity to areas commonly serviced by freight carriers, islands, APO/FPO addresses, P.O. Boxes, Alaska and Hawaii. Please provide your daytime and evening phone numbers during check out so our carrier can contact you to schedule delivery. Refer to our Oversized Item Delivery Policy for additional information.
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For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.