Plus size pajamas: buy for your hardest-to-fit half
A pajama set is sized as one garment, so buy for your top — the elastic waistband on the bottoms gives more room than a fixed shoulder and bust.
Why a pajama set doesn't split by half size
A two-piece pajama set is sold and sized as a single garment, not two separate items you can mix and match by size. When your top half and bottom half wear different sizes, that single size label forces a trade-off. Buy for whichever half is harder to fit — for most shoppers, that's the top, while an elastic waistband on the bottoms flexes to fit a wider range.
This is the exact question customers ask on our pajama set pages: what to order when a 2X fits the top but a size 16 fits the pants. There's no universal formula, but the elastic-waist rule holds in nearly every case, because the top is the fixed point and the bottom is the flexible one.
Check the garment's own measurements, not just the size
Two sets in the same size range can fit differently, so measure before you buy. The 2-Piece Capri Cotton PJ Set has a 29-inch top length and an 18-inch capri inseam, with a stretch elastic waistband on the bottoms. The Knit PJ Short Set runs shorter — a 28-inch top and a 5-inch short inseam, also with an elastic waist for pull-on ease. Compare those numbers to a pajama top or bottom you already own and know fits, rather than relying on the size letter alone.
| Set | Top Length | Bottom Length | Waist |
|---|---|---|---|
| 2-Piece Capri Cotton PJ Set | 29 inches | 18-inch inseam | Elastic, stretch |
| Knit PJ Short Set | 28 inches | 5-inch inseam | Elastic, pull-on |
When to buy separates instead of a set
If your top and bottom sizes are more than one size apart, skip the set and buy pieces as separates on their own. A V-Neck Short Sleeve Knee-Length Cotton Sleepshirt sized to your top, paired with pajama bottoms sized to your bottom, solves the mismatch outright — each half is its own size, with no compromise. Woman Within® sleepwear runs 10W–44W, so there's room to size up or down on either half without running out of range.
Separates cost you the matching-print look of a set, but they're the honest answer when a set's single size doesn't fit both halves of you. If you're between two sizes on top, size up — cotton knit softens with wear but it isn't stretchy the way the waistbands are.
Three plus size pajama picks, sorted by fit
Start with what you need each half to do, then match the pick.
- 2-Piece Capri Cotton PJ Set — for a woman who wants matching print and a longer top. Pure cotton knit, 29-inch top, 18-inch capri inseam, stretch elastic waist.
- Knit PJ Short Set — for warm sleepers who want the shortest coverage in a set. Cotton knit, 28-inch top, 5-inch short inseam, pull-on elastic waist.
- V-Neck Short Sleeve Knee-Length Cotton Sleepshirt — for anyone solving a top/bottom size mismatch. Knit cotton, ribbed V-neck, sized on its own so it isn't tied to a matching bottom.
Wash all three on a normal, cool setting rather than hot — cotton knit can settle a little in the first wash, so launder gently and let it air dry when you can.
Frequently asked questions
What size do I order if my top and bottom sizes are different?
Buy the set in the size that fits your top. The elastic waistband on the bottoms has more give than the fixed shoulder and bust of the top, so it's the half more likely to still work a size off.
Do plus size pajama sets have pockets?
It varies by style, so check the individual product page. The sets on this page don't list pockets among their features — look for that detail called out explicitly before you buy if it matters to you.
Will a cotton pajama set shrink in the wash?
Cotton knit can settle somewhat after washing, especially in the first cycle. Wash on a cool or normal setting rather than hot, and check the care label on your specific set.
Can I buy a pajama top and bottom in different sizes?
Yes — buy a sleepshirt or pajama bottom as a separate rather than a matched set, and size each piece on its own.