SillyGrump
Cozy on the outside. Grumpy on the inside. 🎄
🎄 BESTSELLER
Silly Grump Santa Plush Onesie
Grumpy hood · dog pocket · booties included
$54.98
$99.98
Get yours in 6–8 weeks while others wait 2-3 months
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Pick Your Set
🎄 Today's Christmas Deal Ends In: 58m 26s
🔥 Selling fast — low stock due to high demand. Claim yours before it's gone.
Single
1 onesie · just for you
$54.98
$99.98
Made just for you · arrives in 6–8 weeks 🎄
BUY NOW — $54.98FREE SHIPPING INCLUDED
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You save $95.98
Bestie Duo + FREE GIFT 🎁
2 onesies + free gift
$103.98
$199.96
Free gift included — $10 FREE
Made just for you · arrives in 6–8 weeks 🎄
BUY NOW — $103.98FREE SHIPPING INCLUDEDTrio Squad
3 onesies · best value
$151.98
$299.94
Made just for you · arrives in 6–8 weeks 🎄
BUY NOW — $151.98FREE SHIPPING INCLUDED🔒 Secure checkout · 📦 Tracking emailed when it ships · ✅ 30-day money-back guarantee
What People Are Saying
4.9
240+ verified reviews
Kayla Robinson
✓ Verified
Wore this to our tree-decorating night and my family genuinely screamed. The plush is so much thicker than I expected and the hood actually holds its grumpy shape instead of flopping. I have not taken it off since it arrived.
brittany morales
✓ Verified
Got the duo with my brother for our family party. The droopy hat down the back is the best part — people kept grabbing it. 6'1", 205 lb, got the XL and it fits perfect with room to spare.
Destiny W✓ Verified
The little dog pocket killed me. Softest thing I own. 🐶
Jaz✓ Verified
Bought it as a joke gift. He has worn it every single day since.
Ashley Nguyen✓ Verified
Booties are warmer than my actual slippers. Zero notes.
mandy.k✓ Verified
Won the ugly sweater party and I wasn't even wearing a sweater.
Tyler Brooks✓ Verified
Fit true to the chart, shipping was tracked the whole way. Ordering a second one.
- 🧸Ridiculously soft plush
Thick fuzzy fleece that feels like a heated blanket you can walk around in.
- 🐶Real dog pocket
A brown plush pup with a red bow rides on the leg — and yes, it's a working pocket.
- 🎅Full 4-piece set
Hood with the grumpy face, Santa hat, fur-trim top, green pants and red booties.
🎁 Wrapped and ready — the gift that makes the whole room lose it on Christmas morning.
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Size Guide
Adult sizes · unisex, relaxed plush fit
| SIZE | HEIGHT | CHEST | WEIGHT |
|---|---|---|---|
| S | 5'0" – 5'4" | 34" – 36" | 100 – 135 lb |
| M | 5'4" – 5'8" | 37" – 39" | 135 – 165 lb |
| L | 5'8" – 5'11" | 40" – 43" | 165 – 195 lb |
| XL | 5'11" – 6'2" | 44" – 47" | 195 – 230 lb |
| XXL | 6'2" – 6'5" | 48" – 51" | 230 – 270 lb |
Between two sizes? Size up — it's meant to be baggy and the booties fit over socks.
Questions, Answered
Everything you'd ask before you grab one
When will I get it?
Each onesie is made to order: about 4 weeks for production, then about 4 weeks for shipping — most orders arrive in 6–8 weeks. That's exactly why early access exists: order now, beat the Christmas rush.
What's your return policy?
All sales are final — no refunds or returns for change of mind, because every onesie is made to order. If your order arrives damaged, defective or wrong, email [email protected] within 7 days of delivery with your order number and a photo — we'll replace it or refund it for free. If your order hasn't arrived within 8 weeks, email us and we'll resolve it.
How do I pick my size?
Adult unisex S through XXL — check the size guide above. The fit is deliberately roomy and plush, so if you're between sizes, size up. The booties are generous and fit over regular socks.
Do I get tracking?
Yes. Every order ships fully tracked, and you get a tracking link by email the moment your set leaves the facility.
How do I reach you?
Email [email protected] and a real human answers, usually within 24 hours. Order number in the subject line speeds it up.
Is shipping really free?
Yes — free shipping on every option, single, duo or trio. No minimum, no surprise fee at checkout.
What if I don't love it?
You're covered by our 30-day money-back guarantee. Just email [email protected] and we'll make it right.