Overnight Period Underwear for Teens

Home / Overnight Period Protection

Protection That Lasts All Night.

Extra-absorbent leakproof protection designed for long nights and lots of movement, giving her more coverage so she can sleep comfortably without worrying about leaks, or shifting pads.

Buy any 3 for 15% off, buy 5+ for 20% off

13 items

Layer under clothes or PJs

No filters available

Find the right pair

SuperPlus Leakproof® Sleepover Short

Absorbs up to 11 super tampons

Front-to-back liner

No-show, seamless fit

Super Leakproof® Sleepover Short

Absorbs up to 7 super tampons

Body-hugging fit

No-show, seamless fit

Super Leakproof® Mini Sleepover Boxer

Absorbs up to 9 super tampons

Mini length

Lace detailing

Super Leakproof® Sleepover Boxer

Absorbs up to 9 super tampons

Classic length

Side slit hem

Leakproof Luxe Modal Sleep Boxer

Absorbs about 2.5 super tampons

Luxe modal fabric blend

Boxer short style

Your questions, answered.

How do I wash period underwear?

It's easy, we promise. Give them a quick rinse under cold water first, then toss them in the washing machine with your regular clothes, cold water, mild detergent, no softener or bleach. For drying: lay flat for medium absorbency styles, or tumble dry on low for high and super absorbency ones. That's it. No ironing needed!

Are leakproof products tax-free?

Good news, period underwear and pads are exempt from federal sales tax in Canada, and most provincial/harmonized sales taxes too. The exception? If your order ships to (or you're shopping in a store in) British Columbia or Manitoba, a 7% PST applies. Saskatchewan, it's 6% PST. Still have questions? We've got more info here.

How does period underwear work?

What do the absorbency levels mean?

Ultra: Absorbs the equivalent of 7-11 super tampons. Our longest front-to-back liner, designed for their heaviest flow days and overnight protection.

Heavy: Absorbs the equivalent of 4–7 super tampons. Great for overnight or the heaviest days when swapping into a fresh pair isn't always an option.

Moderate: Absorbs about 2.5 super tampons' worth. A solid go-to for medium flow days, discharge, and sweat.

Light: Absorbs about 1 regular tampon's worth. Perfect for spotting, lightest days, discharge, and sweat.

Does my teen need to wear a pad or tampon with period underwear?

Totally up to them! Every flow is different, and there's no wrong answer. Depending on the absorbency level and how heavy their period is, they can wear KT undies on their own or use them as backup alongside a tampon or menstrual cup. Whatever makes them feel most confident is the right call.

Order summary

Suggestions

Top Picks

Light Leakproof Cotton Bikini Underwear