The best baby safe sleep aid is the Safe T Sleep Sleepwrap which simply goes over whatever baby wears to bed. https://www.safetsleep.com/products/baby-wisdom-book
For a premature newborn and older very wriggly babies many Mothers find that using either a natural, breathable, soft muslin fabric wrap or, a Love to Dream, a good quality baby sleeping bag or any sleepwear in combination with the Sleepwrap is the best solution for their wriggly baby. Testimonial:
All except the Mini Sleepwrap models come with a clever little leg piece which threads through any sleeping bag with an opening slot at the front and back. The Safe T Sleep Sleepwrap is perfect for babies with acid reflux/reflux/gerd, colic or a general cold, who often need the mattress elevated; the Safe T Sleep Sleepwrap ensures that they don’t slip down the bed.
For downward creeping babies
Simply position the Sleepwrap in the bed and use the clever little leg piece to prevent downward creeping.
For forward creeping babies – Use a good quality sleeping bag with an opening slot front and back and simply thread the little leg piece through that. https://www.safetsleep.com/pages/instructions
A mother’s review: “I highly recommend using a Safe T Sleep combined with a baby sleeping bag – it’s the perfect combination for babies once they are no longer swaddled. It means your baby is warm and won’t wake up cold, or under the covers, plus it’s great to have the peace of mind that your baby is in a safe sleeping position all night. We always recommend the Safe T Sleep & sleeping bag combination for parents looking to teach their babies to sleep settle, and learn to sleep through the night”.
Owner of The Sleep Store
“Love the Safe T Sleep! From an early age my daughter, in her gogo bag, would wriggle to the top of her bassinet, get her face stuck in the padded sides, and wake screaming. We rushed out and bought a safe t sleep and all slept better as we no longer had to worry about her. She used this until she could sit up in her cot. It was also useful when we went away as we used the extension to secure her to a single bed when we needed to.”
Many parents, grandparents and caregivers are using the combination of a baby sleeping bag with the Safe T Sleep Sleepwrap in order to keep babies from newborn to 2years old even safer and cosier while sleeping. https://www.safetsleep.com/collections/all-safe-t-sleep-products