get to know the Clever Sleep Sack

Creating a safe environment for your baby to sleep can be a daunting task; there are so many options for sleepwear and so much advice on what’s right for them.


The Lullaby Trust, a charity that promotes safer sleep for babies, has listed a sleep sack as essential in their product guide. A baby sleep sack is a good option as they prevent little ones head from accidentally being covered and the availability of different TOGs means you can choose the right one for the season.

Sleep sacks also provide a familiar sleeping environment for your little one. An evening routine can be established as they’ll (hopefully) associate winding down and sleeping with being placed into the sleep sack, even if it’s for storytime on the sofa or bedroom floor. 

At MORI we are dedicated to helping the whole family sleep better, which is why we developed the Clever Sleep Sacks. This award-winning essential is innovatively designed to ensure your little one has an undisturbed & safe sleep, taking away some of the safety & temperature issues of bedtime.

Shop our clever sleep sacks

What makes our sleep sack so clever?

  1. The Clever Sleep Sack is crafted in our signature fabric made from organic cotton & bamboo from viscose. The unique fabric is incredibly soft and safer than most materials as it’s breathable, thermoregulating & moisture-wicking. These properties ensure that little ones stay at the perfect temperature every night.

  2. It is designed with many useful features such as a double-directional zip to make changing easier and clever openings for a stroller so your little one can snooze undisturbed on the move. 

  3. As your little one grows, the sleep sack remains a good choice as it gives them plenty of room to move around & grow. We understand babies grow too fast which is why the MORI Clever Sleep Sack is designed to fit from 8-9lbs (this size can be anywhere from newborn to 3 months) up to 2 years. (This means you don’t have to replace the sleep sack every 6 months how handy!)

  4. Little ones love to wriggle, even when they’re sleeping. The Clever Sleep Sacks keeps their legs tucked in to avoid them waking up chilly in the night because they’ve kicked off the covers. The fitted neck opening and adjustable armholes also ensure your baby won’t slip down inside the sack.

  5. Our Clever Sleep Sack comes in 3 TOGs (2.5, 1.5 & 0.5) in order to keep your little one comfortably covered in every season & every climate.

What age to use a Sleep Sack from?

It’s very important you get a sleep sack that’s the right size for your little one; if it’s too big, there's a chance their head could slip down. Sleep sacks often have a lower weight limit, usually around 8-9lbs (4kgs) so depending on your baby’s size they can be used from birth. 

The perfect temperature all year round

The variety of TOGs available for sleep sacks make them safe for sleeping all year round, but what is a TOG? Put simply, it determines the thickness of the sleep sack: the higher the rating, the warmer it is.

  • The 2.5 TOG baby sleep sack is perfect for keeping your baby snug in the colder seasons. 

  • The 1.5 TOG baby sleep sack is suitable for a temperate climate most of the year with layers. 

  • The lightweight 0.5 TOG baby sleep sack has no padding so it is ideal for when the weather warms up or if you head on holiday!

  • Babies can’t regulate their temperature well, so dressing them appropriately underneath a sleep sack is important so they stay at a safe & comfortable temperature whilst they sleep. Below is our guide on what layers & TOGs should be worn when:

    How to care for your Clever Sleep Sack

    We make all of our clothing to last and with proper care, the pieces will remain to look and feel great so they can be worn again & again so they can eventually be passed on to another little one. We recommend following this advice to care for your Clever Sleep Sack:

Discover the Clever Sleep Sacks


← Next Post Previous Post →

Switch to USD ?