Pajama Size Guide: If You’re Between Sizes, Do This

Being between sizes is normal — and it’s exactly why pajama shopping can feel annoying. One size feels too fitted, the next feels too loose… and you’re left guessing.

Here’s the simple truth: pajamas aren’t supposed to fit like streetwear. The best size is the one that feels comfortable in bed — when you’re lying down, rolling over, and warming up.

This guide gives you clear rules (no fluff) so you can choose confidently if you’re between sizes.

Quick Answer (TL;DR)

Most of the time: choose the slightly larger size for sleepwear.
If you hate loose fabric twisting: choose the smaller size, but only if nothing pulls or digs.
If waistbands bother you: choose larger or switch to a nightgown.
If you sleep hot: choose roomier for airflow (or go mini set).
If your top fits but pants don’t: prioritize comfort at hips/waist first.

Shop by vibe: Cotton Sets · Silk Sets · Mini Sets · Nightgowns

The Golden Rule: Comfort Wins (Not the Label)

If you’re between sizes, choose the size that feels comfortable in these moments:

lying on your side
sitting with knees bent
rolling over
breathing deeply (no pressure points)

If anything feels tight standing up, it will feel worse in bed.

If You’re Between Sizes: Do This (Simple Decision Tree)

1) Start with the waistband question

Waistbands are the most common “size regret.” Ask yourself:

Do I get irritated by pressure on my stomach/hips at night?
Do I wake up adjusting my waistband?
Do I hate tight clothing in general?

If yes to any of these: choose the larger size.

If you want to remove waistbands entirely: Explore Nightgowns.

2) Decide whether you prefer “roomier” or “controlled”

There are two valid pajama fits — and people usually prefer one:

Roomier fit: airy, breathable, relaxed feel (often better for sleep).
Controlled fit: less fabric movement, less bunching (often better for restless sleepers).

3) Choose based on how you sleep

If you sleep hot: choose larger for airflow (or reduce coverage with a mini set).
If you toss and turn: choose the size that doesn’t twist (usually not oversized).
If you’re pressure-sensitive: choose larger or go nightgown.

If the Top Fits But the Bottom Doesn’t…

This is super common. Pajama sets usually come as one size, so prioritize the part that impacts sleep most: waist + hips.

If pants feel tight at waist/hips: choose the larger size.
If the top becomes a bit roomier: that’s fine (roomy tops are usually comfortable for sleep).
If you truly hate a roomy top: consider a nightgown or a different silhouette.

Fabric Changes the “Between Sizes” Feeling

The same size can feel different depending on fabric and how it drapes:

Cotton: breathable, classic comfort — usually forgiving in a relaxed fit.
Silk: smooth, low friction — can feel less clingy and easier to move in.

If you’re between sizes and hate cling/twisting, silk can feel like a comfort upgrade: Explore Silk Pajamas.

Fast Rules (Copy/Paste in Your Brain)

If you want maximum comfort: size up.
If you hate extra fabric twisting: size down (only if it doesn’t pull or dig).
If waistbands bother you: size up or choose a nightgown.
If you sleep hot: size up or choose less coverage (mini set / nightgown).
If you’re buying as a gift: size up (more forgiving).

Quick Pick Table

If you are between sizes and...	Choose	Why
You hate tight clothes / pressure	The larger size	Comfort wins, less digging
You sleep hot	The larger size (or mini set)	More airflow, less cling
You toss and turn and hate bunching	The smaller size (if not tight)	Less extra fabric to twist
You’re gifting and unsure	The larger size	More forgiving fit
Waistband feels tight in one size	The larger size (or nightgown)	Avoid pressure points