What is a TOG rating?

TOG measures thermal resistance - how warm a fabric feels. TOG 1.0 is ideal for room temperatures of 70-73F (21-23C) and works year-round in most homes.

What size Signature sleep bag does my baby need?

The Signature comes in three sizes: Small (S) for 0-6 months, Medium (M) for 6-18 months, and Large (L) for 18-36 months.

Is the Signature sleep bag safe for newborns?

Yes - The Signature starts at Size S for 0 months. It replaces loose blankets as a fitted wearable, supporting AAP safe sleep guidelines from day one.

How do I wash The Signature sleep sack?

Machine wash cold on a gentle cycle and tumble dry low. The bamboo blend maintains softness wash after wash.

Is the fabric OEKO-TEX certified?

Yes - all Lucas Play sleep sacks use OEKO-TEX Standard 100 certified premium bamboo blend, free from harmful substances.

The Signature Sleep Bag - Lavender TOG 1.0 | Bamboo Baby Sleep Sack

The Signature Sleep Bag - Lavender TOG 1.0 | Bamboo Baby Sleep Sack

The Signature. Soft, simple, and made to be loved every night.

Lucas Play’s Signature Sleep Sack is our luxuriously soft bamboo wearable blanket - temperature-regulating, diaper-change friendly, and available in three sizes to fit babies 0 to 36 months.

Why parents choose The Signature

Silky cloud-soft bamboo softness - Crafted from our premium bamboo blend: breathable, moisture-wicking, and naturally gentle on baby’s skin.
TOG 1.0 comfort - Lightweight, all-season warmth for nursery temperatures of 70-73°F (21-23°C).
Three sizes for every stage: Small (S): 0-6 months | Medium (M): 6–18 months | Large (L): 18-36 months
Diaper-change friendly zip - Bottom zip makes nighttime changes fast and fuss-free.
Machine washable - Wash it 100 times. Still soft. Still perfect.
OEKO-TEX® certified materials - No harmful chemicals. Ever.

About the Lavender colorway

A soft, dreamlike purple that brings calm and whimsy to any nursery. Beautiful with white, grey, or natural linen — equally at home in girl or gender-neutral spaces.

What is TOG 1.0?

TOG measures warmth retention. TOG 1.0 is the all-purpose everyday rating, suitable year-round in most homes (70-73°F / 21-23°C).

The essentials

Material: Premium bamboo blend (OEKO-TEX® certified)
TOG: 1.0 | Room temp: 70-73°F / 21-23°C
Sizes: S (0-6M), M (6-18M), L (18-36M)
Closure: Two-way bottom zip
Care: Machine wash cold, tumble dry low

Free U.S. shipping on orders over $75.

$38.99 USD

Shipping calculated at checkout.

Select a Size

Size guide

Colors Available

Comfort you can count on:

Ultra-plush cloud soft bamboo for the ultimate cozy
Breathable, temperature-regulating hypoallergenic for baby's sensitive skin
Durable 2-way zipper for easy on/off and quick diaper checks.
Machine-washable and ready for wash-after-wash wear
Premium blend of 95% Rayon from Bamboo, 5% Spandex
100% Polyester filling

We all know - no two babies are alike! Please use our measurements size guide to ensure a comfortable and safe fit for your baby.

Size and TOG Guide

TOG (“Thermal Overall Grade”) is a simple way to show how warm a sleep bag is.
At Lucas Play, we currently offer 1.0 TOG because it’s the most versatile, and ideal for typical nursery temps (about 20–22°C / 68–72°F).

Size and TOG Guide

Fasten zippers before washing
Machine Wash Cold
Do not bleach
Tumble dry low
Iron on low

Each Signature sleep bag arrives in sleek, ready-to-gift packaging - special for celebrations, perfect for everyday.

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See what all the excitement is about

GIFT LUXURY

We believe in creating products that inspire and delight, with premium features to make everyday use a breeze.

1.6x More Plush Than Other Leading Brands.

Every detail thoughtfully designed with superior craftsmanship to deliver unmatched quality you can rely on.

Hypoallergenic, Eczema Friendly

Our products are tested for harmful chemicals, and created using OEKO-TEX® certified materials, made to be soft, breathable, and gentle on baby’s delicate skin.

High-Performance 2-Way Zippers for Complete Confidence

Two-way J-shaped zipper make for smooth diaper checks and changes, without disrupting your sleeping baby.

Zipper Garage and All-round Zipper Lining

Exclusive Zipper Trim Protection - Built-In All The Way Around for Baby's Protection and Comfort

Easy Care, Retains Ultra-Softness

Designed intentionally to be machine washable and dryer safe, made for real life.

Designed for Peace of Mind

At Lucas Play, we take safety seriously. We work with independent 3rd party experts to ensure our products are rigourously tested and are compliant with safety standards in the United States and Canada.

We use materials that are OEKO-TEX Standard 100 certified - a standard of safety and precaution above the normal standard to bring parents an additional layer of comfort. We work with our manufacturers and quality-assurance investigators to ensure our products pass a 25-point inspection, so all our products meet the same standard of quality and safety.