Super Sleep Set

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Super Sleep Set

Name: Super Sleep Set
Brand: Knixteen Canada
Price: 76.5 CAD
Availability: InStock

$76.50 CAD

$90.00

Choose your colors

Absorbs about 7-9 super tampons worth of liquid

Quick dry liner that pulls liquid away

Logo waistband can be worn flipped up or down

Faux fly with faux mother of pearl buttons

Best Savings

Super Sleep Set

$76.50 CAD

$90.00

Choose your colors

Absorbs about 7-9 super tampons worth of liquid

Quick dry liner that pulls liquid away

Logo waistband can be worn flipped up or down

Faux fly with faux mother of pearl buttons

Set includes:
Leakproof kit with 2 sleep boxers

See Details

Super Leakproof® Sleepover Boxer Kit

Color: Black Limited Edition

Size:

Super Leakproof® Sleepover Boxer Kit

Color: Black Limited Edition

Size:

FREE Shipping on orders $100+

Return Policy

Rest easy with two different colors of our bestselling overnight boxer.

This Kit Includes:

2 pairs of Super Leakproof® Sleepover Boxer

So you feel fresh and in-control. Absorbs ~ 7-9 Super tampons.

Comfort-First Fit

Combining a loose-fitting boxer with an internal brief for discreet Leakproof protection. Designed to be worn as both loungewear and overnight protection.

Worry Free Protection

Designed with a built-in leakproof liner that fits snug to the body, it helps lock in leaks from every angle, even as you toss and turn.

Absorbency Level: Heavy

Absorbs 7-9 super tampons' worth of liquid for overnight protection and heavy flow days.

Machine Washable

Machine Wash Cold. Wash with like colours. Do Not Use Fabric Softener or Dryer Sheets. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.

Fabric

Body/Corps : 48% Polyester, 47% Rayon from Bamboo, 5% Spandex;
Liner/Doublure: 96% Cotton, 4% Spandex;
Fresh Fix Technology® Gusset/Soufflet:
Gusset/Soufflet 1: 92% Polyester, 8% Spandex;
Gusset/Soufflet 2: 95% Polyester, 5% Spandex;
Gusset/Soufflet 3: 95% Polyester, 5% Spandex; 100% Polyurethane

FREE Shipping on orders over $100

Items discounted at 30% or below are eligible for a size exchange or store credit. Refunds are not available for these items. Items discounted above 30% are considered final sale and are not eligible for refunds, store credits, or exchanges. Items marked “Clearance” are also final sale and cannot be returned, exchanged, or refunded. No exceptions.

• Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.

about 8-14 tsp
about 1.5-3 regular pads
about 4-7 super tampons
about 1.5-3 menstrual cups

• Ideal for lightest period days, spotting, sweat and discharge.

about 1-3 tsp
about 1-3 pantyliners
about 1-3 regular tampons
about 0.5 menstrual cups

• Ideal for medium period days, discharge and sweat.

about 4-8 tsp
about 1-1.5 regular pads
about 2-4 super tampons
about 0.5-3 menstrual cups

• Ultimate peace of mind. For the heaviest period days or overnight protection.

about 15-20 tsp
about 1.5-2.5 super pads
about 7-11 super tampons
about 2-3 menstrual cups

Easy to Wash

100% reusable and machine washable, just like regular underwear.

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!

What do the absorbency levels mean?

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.

How does period underwear work?

All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in. Here's what's going on under the hood:

Layer 1 wicks away moisture and uses antibacterial technology to neutralize odors, keeping your teen feeling fresh all day.
Layer 2 is a super thin but seriously absorbent liner, depending on the style, it can hold the equivalent of 3–20 tampons or pads.
Layer 3 is a liquid-resistant outer layer that keeps everything locked in so leaks don't stand a chance.

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.

Can I return my period underwear?

Because these are underwear, we can't take back worn pairs, but here's the good news: you can try one pair from your first order risk-free for 30 days!

Ordered the wrong size? We'll send a replacement pair at no cost, or give you a full refund within 30 days of delivery (excluding original shipping).

If your order had multiple pairs, just open and try one. Any unopened pairs from the same order are eligible for an exchange or refund within 30 days. And heads up, all sale items are final sale.

All Mystery Bundles are Final Sale.

Sleep

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Size and Fit Guide

Super Leakproof® Sleepover Boxer Kit

Size and Fit Guide

2 pairs of Super Leakproof® Sleepover Boxer

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Your questions, answered.

How do I wash period underwear?

What do the absorbency levels mean?

How does period underwear work?

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

Can I return my period underwear?