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  1. Best retentivity foam mattress toppers of 2022. Sleep Foundation. https://www.sleepfoundation.org/best-mattress-toppers/best-retentivity-cream-mattress-topper

  2. 13 all-time memory foam mattress toppers of 2022. Healthline. https://www.healthline.com/health/healthy-sleep/memory-foam-mattress-topper#quick-await

  3. Hauk, 50. SIDS and safe sleeping environments for infants: AAP updates recommendations. American Family Physician. 2017 Jun 15;95(12):806-807.

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