What Weighted Blanket Should You Get? The Complete Guide

What Weighted Blanket Should You Get? The Complete Guide

Choosing a weighted blanket should feel simple. You find a size you like, pick a weight, and check out. But most people stall at the weight step, and for good reason. Too light, and you might not really feel the weight. Too heavy, and it can feel restrictive, or too warm to sleep under.

The good news is there is a clear starting point, used for decades in occupational therapy: the 10 percent body weight rule. Once you understand it, and the situations where you might adjust slightly up or down, the decision becomes straightforward.

This guide covers everything you need to choose the right weight, whether you are buying for yourself, a child, or an older family member.

The 10 Percent Body Weight Rule, and where it comes from

The most widely used guideline for weighted blanket sizing is that your blanket should weigh roughly 10 percent of your body weight. This is not a marketing number invented to justify a product range. It comes from occupational therapy, where practitioners found that even, all-over weight felt best when it was proportional to the person's size.

The reasoning is simple. When the weight is too light, you barely notice it. When it is too heavy, it can feel restrictive rather than comforting. At around 10 percent of body weight, most adults find the weight feels grounding and pleasantly firm without being overwhelming.

It is worth emphasising that 10 percent is a starting point, not an absolute rule. Personal preference, sleep position, body composition, and prior experience with weighted blankets all play a part. Most regular users settle on a weight within 1 to 2 kilograms of the formula result.

Weighted Blanket Weight Guide by Body Weight

If your weight sits between two options and you are genuinely unsure, most adults find the slightly heavier option gives a more noticeable, grounded feeling.

When to choose a lighter weight than 10 percent

The 10 percent guideline is exactly that, a guideline. There are several situations where starting lighter is the smarter choice.

First-time users who are unsure about a snug, contained feeling often find a lighter blanket easier to settle into. Starting lighter lets you get used to the weight without the first few nights feeling like too much.

Hot sleepers are another clear case. More weight means slightly more fill, which means slightly more insulation. If you run warm at night, or live somewhere with a humid summer, a blanket 1 to 2 kilograms below the standard formula can feel more comfortable while still giving you that grounded feeling. The cover material matters enormously here too. See our guide on weighted blanket fabrics for more.

Older users often prefer lighter options, typically no more than 5 to 6 kilograms, not for the feel but for practical ease. Getting in and out from under a 9 kilogram blanket several times a night can be physically demanding for anyone with reduced mobility or strength.

When to choose a heavier weight than 10 percent

Some people find standard weights feel underwhelming, particularly those who have used weighted blankets before. If you find firm pressure inherently comforting, think deep tissue massage, firm hugs, or compression clothing, you may prefer a blanket 1 to 2 kilograms heavier than the formula suggests. Starting at the upper end of your recommended range is a reasonable approach.

One important safety note: most makers and occupational therapists recommend not exceeding 15 percent of your body weight. Beyond that, the weight can start to feel restrictive or uncomfortable enough to disrupt sleep rather than help it.

Choosing the right weight for children

Choosing for a child takes a little more care than choosing for an adult.

The usual guideline for children is 10 percent of body weight plus around 500 grams. For children with specific sensory or developmental needs, working with an occupational therapist to settle on the right weight and approach is strongly recommended before buying.

Never use a weighted blanket with babies or toddlers under 2 years of age. For children aged 2 to 5, a 2 to 3 kilogram blanket is typically right for a child weighing 15 to 25 kilograms. For school-age children, 3 to 5 kilograms is the common range depending on size and preference.

Crucially, always make sure children can remove the blanket independently. A weighted blanket should never restrict a child's ability to move or change position during sleep. If a child cannot lift the blanket off themselves, it is too heavy.

Choosing for seniors

For older adults, the practical side often matters as much as the formula. A blanket that is technically ideal but hard to manage will not get used.

Most occupational therapists working with older clients suggest capping weight at 5 to 6 kilograms regardless of body weight, unless the person has good upper body strength and mobility. Lap blankets, smaller and lighter and used during the day while seated, are increasingly popular as a comfortable, manageable alternative to a full-size blanket.

If you are buying for an older parent or relative with a health condition or limited mobility, a quick conversation with their GP or clinician before buying is always worthwhile.

How to find your Groundd weight

Groundd weighted blankets come in several weights to suit most adult body weights and preferences. If you are still unsure, the Groundd product finder quiz takes you through a short set of questions, including body weight, how warm you sleep, and whether you have used a weighted blanket before, and recommends the right option in under two minutes.

All Groundd blankets use fine glass beads as fill. Glass beads distribute weight more evenly than plastic pellets and stay within their sewn pockets rather than migrating and creating uneven spots. The cover is made from OEKO-TEX certified bamboo lyocell, which is naturally temperature-regulating, so the weight of the blanket does not translate into excess warmth the way polyester options tend to.

Frequently Asked Questions

Can two people share a weighted blanket?
Weighted blankets work best when sized to the individual. Sharing usually means one person gets too little weight and the other too much. For couples, two individual blankets, each sized to the person, work far better than a single shared one.

What if my weight changes significantly?
Within a range of 5 to 10 kilograms, your existing blanket will still feel good. If your weight changes substantially, reassess using the 10 percent formula. A blanket that is 1 to 2 kilograms outside the ideal range is not wasted. Many people own two weights for different seasons or moods.

Is there a maximum safe weight for a weighted blanket?
Most makers and occupational therapists recommend staying at or below 15 percent of body weight. Above that, the blanket may feel restrictive or uncomfortable enough to disrupt rest.

Can I use a weighted blanket during pregnancy?
Consult your midwife or doctor before using a weighted blanket during pregnancy, particularly in the second and third trimesters. Comfortable sleeping positions change a lot during pregnancy, and what feels right varies by individual.