Sizing Guide
Our products are designed to fit standard U.S. bedding sizes.
Mattress Topper Sizes
All mattress toppers are 2 inches thick
| Size | Dimensions | Wool Fill Weight | Best For |
|---|---|---|---|
| Twin XL | 80" × 39" | 8 lbs | College dorms, single sleepers, adjustable beds |
| Full | 75" × 54" | 10 lbs | Guest rooms, young adults, smaller bedrooms |
| Queen | 80" × 60" | 12 lbs | Master bedrooms, couples, most popular size |
| King | 80" × 76" | 14 lbs | Spacious master bedrooms, couples who want extra room |
Mattress Topper Sizing Tips
- Measure First: Measure your mattress length and width at the widest points to ensure proper fit
- Corner Straps: All toppers include 4 elastic corner straps that fit mattresses up to 18-20 inches thick
- Between Sizes: If your mattress falls between sizes, choose the bigger size to ensure coverage. Topper can easily bend over excess sides.
- Split King Note: For split king adjustable beds, order two Twin XL toppers instead of one King topper
Pillow Sizes
| Size | Dimensions | Wool Pearl Fill Weight | Best For |
|---|---|---|---|
| Queen | 20" × 30" | 2.5 lbs | Most sleepers, fits standard pillowcases |
| King | 20" × 36" | 3.5 lbs | Those who prefer larger pillows, king beds |
Special Considerations
For College Students
Most dorm beds require Twin XL (80" × 39") toppers. This size is longer than a standard Twin to accommodate taller students and is the most common dorm mattress size.
For Adjustable Beds
Our toppers work well with adjustable beds, with one exception: King size toppers do not work with split adjustable king beds. For split kings, purchase two Twin XL toppers.
For Couples with Different Preferences
Couples with different comfort preferences on a king bed can use one Twin XL toppers. Note that only two corner straps will be functional with this arrangement.
How to Measure Your Mattress
- Remove all bedding from your mattress
- Measure the length from head to foot at the longest point
- Measure the width from side to side at the widest point
- Compare your measurements to our size chart
- If unsure, measure twice to ensure accuracy
Sizing FAQs
Q: Will the 2-inch topper make my bed too high?
A: Most fitted sheets will still fit comfortably with the added 2 inches. Deep pocket sheets work perfectly, and the added height is generally not noticeable for getting in and out of bed.
Q: Do you offer custom sizes?
A: We specialize in standard U.S. sizes only. Custom sizing is not available due to our handmade production process.
Q: Can I use the topper on a European-sized bed?
A: Our toppers are designed for U.S. standard sizes. European bed dimensions differ, so please measure carefully and compare to our size chart.
Still Have Questions?
If you need help determining the right size for your needs, contact our customer support team at support@iwoolify.com. We're here to ensure you get the perfect fit for your best night's sleep.
