Sleepy Soft Box

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Sleepy Soft Box

$148

(Valued up to $274)

Select Your Top Size:

Select Your Bottom Size:

85 people have this in their bag.

Final Sale. No Exchanges or Returns.

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Slip into something softer and let the day melt away. The Sleepy Soft Box is your personal invitation to unwind in the most elevated way possible. Featuring four entirely new pieces, this box delivers the ultimate in sleep and undergarment essentials (hint, a brand new style of underwear)—PLUS the debut of an all-new product category that redefines what it means to lounge.

Designed to feel like a gentle exhale, these pieces were made for everything from slow weekend mornings to serene bedtime rituals. It’s comfort that doesn't just meet the moment—it elevates it.

Some Hints:

Four New, Never-Before-Seen Styles
Introducing an All-New Category
Ultra-Soft, Breathable Fabrics
Effortless Relaxation
Dreamy Layers, Inside and Out
Sleepwear Meets Modern Minimalism
Intimates, Elevated

Ready to Unwind – Whether you're curling up with a good book, sipping tea before bed, or embracing a no-alarm kind of morning, this box delivers a luxurious foundation for every restful moment.

This is a First Look Box:
Fresh launches. Early access. Style delivered.
Get first dibs on what’s next. Inside this box are brand-new styles, exclusive new colorways and soon to be favorite pieces. All for you before they hit the site at full price. These are in-season, limited, and about to make waves.

Think: VIP access to tomorrow’s favorites. At the best price.

Email: fit@universalstandard.net

Size Guide

Universal Standard Sizing	Universal Standard Denim Sizing	Your size in other brands	Waist	Hip	Bust

4XS	00	XS	24"	34"	32"
4XS	0	XS	25"	35"	33"
3XS	2	S	26"	36"	34"
3XS	4	S	27"	37"	35"
2XS	6	M	28"	38"	36"
2XS	8	M	29"	39"	37"
XS	10	L	30.5"	40.5"	39"
XS	12	L	32.5"	42.5"	41"
S	14	XL/1X	35"	45"	43"
S	16	XL/1X	37.5"	47.5"	45"
M	18	2X	40"	50"	47"
M	20	2X	42"	52"	49"
L	22	3X	44"	54"	51"
L	24	3X	46"	56"	53"
XL	26	4X	48"	58"	55"
XL	28	4X	51"	60"	58"
2XL	30	5X	53"	63"	60"
2XL	32	5X	56"	66"	63"
3XL	34	6X	59"	69"	66"
3XL	36	6X	63"	73"	69"
4XL	38	7X	66"	76"	72"
4XL	40	7X	70"	80"	75"

Already know your denim size? Match it to your waist measurement to find your size with US. If you’re between sizes, size up.

Please note, all measurements are in inches. Exact measurements may vary with each style.

Measuring Instructions and Fit Details

How To Measure?

Bust

Measure around chest at fullest.

Waist

Measure around the narrowest part of your natural waist.

Hip

Measure around the fullest part of your butt.

How It Fits

Skimming: Designed for a comfortable fit that lays closer to the body without clinging.

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Sleepy Soft Box

$148 (Valued up to $274)

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$338 (Valued up to $623)

Perfect Pants Trio Box

$168 (Valued up to $437)

What Our Customers Say

How It Works

Pick Your Box

Choose from limited
edition Mystery Boxes.
Starting at just $84
(but valued up to $1,152)!

We’ll Get to Work

We’ll pack your box with our
pick of best-sellers & never
-before-seen exclusives we know you’ll love.

Unbox the mystery

The highly-anticipated moment.
Open up your box & enjoy your
new favorite pieces! Don’t forget to snap a pic for US!

Is there anywhere that I can learn more about Mystery Box and the fine print?

Of course, we’ve got all the information you need in our Help Center. You can find all Mystery Box and many other US related matters by navigating to the Help Center via the website footer.

Plus full terms and conditions to satisfy your curiosity! You can review them at https://www.universalstandard.com/pages/mb2025-terms. We wouldn’t want the suspense to be too much, here’s a quick summary of the terms for you.

Offer is valid until April 30, 2025 at 11:59 pm PT, or while supplies last, whichever is sooner. Please allow up to 4 weeks for shipping. Mystery Boxes are FINAL SALE and not eligible for return, size/color exchanges or Fit Liberty exchanges. Full terms and conditions apply.

Are Mystery Boxes final sale?

Because Mystery Box is such a unique offering and a customer favorite (at an amazing value!), we’re not able to accommodate any returns or exchanges. All Mystery Box purchases are final sale. Trust US with your box!

What’s in each Mystery Box?

We can’t spill all the secrets- but here’s what we can say! Each Mystery Box is curated around a fun theme and comes with subtle hints to help you pick the perfect one (or more!). While the contents are a surprise, you might unbox: fan- favorite styles, never-before-launched exclusives (including an item you might not even realize you need, but we all need a little support) and maybe even a pair of our best-selling underwear. Remember, each box has a curated theme!

It’s a mystery, but one thing’s for sure- you can’t go wrong!

What happens after I place my order?

Great question! As soon as your order is in our system, our small but mighty team will spring into action. We’ll conduct all the necessary checks before packing your items up with care. Our team of elves (okay, maybe not actual elves) will do everything they can to get your order out quickly. That said, delays do happen from time to time. Our shipping carriers may also experience delays in scanning labels due to volume, so we appreciate your patience as they work their magic to get your items to you.

Any questions?
We got you.