• Low profile black box spring on white studio background – SleepWell
  • Wooden slat bed base frame for mattress support – SleepWell
  • SleepWell plain grey mattress base on transparent background
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MADE IN WINNIPEG SINCE 1992

Posture Board (Bunkie Board)

Posture Board (Bunkie Board)

$100
$100
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The Posture Board, also known as a bunkie board, is a low-profile support board designed to create a firmer, flatter base under your mattress. It is a great option when you need extra support without adding the height of a regular box spring.

This board helps improve mattress stability by giving the mattress a more even surface underneath. It is useful for platform beds, slat beds, metal frames with proper support, or any setup where the mattress needs a stronger, flatter base.

  • Low-Profile Support: Approx. 1.5” thick, adding support without raising the bed too high.
  • Also Called a Bunkie Board: A commonly used support board placed under the mattress.
  • Firmer Mattress Feel: Helps create a more solid and supportive sleep surface.
  • Helps Reduce Sagging: Even support can help reduce uneven mattress wear.
  • Box Spring Alternative: Great when you need support but want a lower bed height.
  • Ideal for Slat or Platform Beds: Helps create a flatter surface under the mattress.
  • Works With Many Mattress Types: Suitable for foam, innerspring, pocket coil, and hybrid mattresses.
  • Easy to Use: Simply place between the mattress and a proper bed frame or platform.
  • Great for Tight Spaces: Easier to move and handle than a full box spring.

Important: A posture board/bunkie board should be used on a proper bed frame, platform, or support surface. It is not meant to fix a broken, bent, or unsupported bed frame.

The Posture Board is built to give your mattress a firm, flat, and stable support surface.

Product Build:

1. Approx. 1.5” Wood Support Board
A low-profile wood support board helps create a flatter and more stable base under the mattress.

2. Firm Support Surface
Designed to help reduce uneven pressure caused by wide slat gaps or uneven frame support.

3. Low-Profile Design
Adds support without the extra height of a standard box spring.

4. Practical Foundation Option
Works as a simple bunkie board-style support layer for many common bed setups.

Wood Quality Standards:

  • Quality Wood Construction: Built for strong and stable mattress support.
  • KD Lumber: Kiln-dried to help reduce moisture, shrinking, and warping.
  • HT Certified Lumber: Heat-treated for pest-control safety.
  • Canadian HT Standard: Heat-treated to 56°C for at least 30 minutes.
  • Stamped Lumber: Mill identification for traceability.
  • Strong Support Design: Helps distribute mattress weight more evenly.

This posture board includes a 5-year limited warranty by Sleepwell Bedding covering qualifying defects in materials and workmanship under normal residential use.

To keep your posture board in good condition:

  • Use with a compatible mattress and bed frame
  • Place on a flat, stable support surface
  • Do not use on a broken, bent, or uneven frame
  • Keep away from moisture and damp areas
  • Do not bend or fold the board
  • Avoid dragging across floors or sharp edges
  • Check bed frame support regularly
  • Wipe clean with a dry or slightly damp cloth if needed

With proper setup and care, the Posture Board (Bunkie Board) helps create a firmer, flatter, and more stable base for your mattress.

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