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Frequently Asked Questions

  • Are the glues used in Moonlight Slumber products green compliant?

    Yes. Moonlight Slumber works with Simalfa, an adhesive company committed to offering only environmentally friendly products and services. They have received the coveted UL GREENGUARD Sustainability Award and are UL's GreenGuard Gold approved.

  • Are Moonlight Slumber products tested for safety?

    Yes. UL GreenGuard Gold.

  • Are all Moonlight Slumber mattresses PVC free?

    Yes. All Moonlight Slumber mattresses are free of Halogens, Tris, Nanoparticles, PVC, Vinyl, PBDE, PBB, Phthalates, Phosphorous, Arsenic, Antimony, and many other harsh and dangerous chemicals that are commonly used in crib mattresses.

  • Do Moonlight Slumber mattresses off-gas?

    Moonlight Slumber’s mattresses are UL GREENGUARD Gold Certified, demonstrating the product is low-emitting, thus contributing to better indoor air quality. Moonlight Slumber Mattresses are tested to meet stringent emissions standards, screening for more than 10,000 chemicals and more than 360 volatile organic compounds, also known as VOCs, which pollute indoor air and contribute to health issues.

  • What are the differences between all-foam and innerspring mattresses?

    All foam models have a core made entirely of foam. Top and bottom layers of foam are added to create desired effect: dual firmness comfort, air flow, pressure redistribution, etc. Our optional innerspring models have an innerspring coil core, which is encapsulated on all sides, top, and bottom with foam, creating a sandwich-like construction.

  • When should the mattress be flipped from the infant side (extra firm) to the toddler side (firm)?

    While all children progress differently, we recommend that you flip your mattress when your child is approximately nine months old. This is the age when they can typically move freely about the crib, becoming mobile and beginning to pull up into a sitting position. However, should you notice your child becoming restless during the night or naptime, it may be a sign that they are ready for the less firm toddler side.

  • What is the fire barrier in Moonlight Slumber products?

    Moonlight Slumber uses no topically applied (spray-on) FR chemicals. Our fire-resistant stocking extinguishes an open flame. The stocking completely encases the mattress leaving no gaps or overlays. It is sewn shut on the opposite end of the mattress with kevlar thread.

  • What is the difference between a fire retardant and fire resistant materials?

    Moonlight Slumber uses no topically applied (spray-on) FR chemicals. Our fire-resistant stocking extinguishes an open flame.

    Fire retardant materials slow the spread of fire. Fire resistant materials do not burn. Moonlight Slumber products are 16 CFR Part 1633 compliant, meaning they are fire resistant. They have been proven, by independent tests, to withstand open flame. They do this without use of spray-on FR chemicals.

  • Do you need to use a mattress pad or waterproof mattress cover with Moonlight Slumber mattresses?

    It is up to personal preference as to whether you use a mattress pad or waterproof mattress cover. All Moonlight Slumber mattresses, with the exception of the Air and Simplicity, are manufactured with a premium, water-, stain-, and odor-resist performance fabric. This fabric is smooth to the touch, warms under your baby, resists cracking and crunching, and can be cleaned with a damp sponge and water.

    However, this fabric will eventually wear. If you would like your crib mattress to appear 'as new' years after initial purchase, you will want to use a mattress cover.

    If you are purchasing a Simplicity or an Air product, please note that these mattresses contain no water-proofing of any kind. If you do not want something to soak in, please cover this mattress with a product of your choice--or with our water-resist covers made specially for these items.

  • Do regular size crib sheets fit Moonlight Slumber mattresses?

    Yes. Moonlight Slumber Starlight Line mattresses will fit any sheet meant for 6" deep US sized crib mattresses. Our Little Line mattresses will fit any sheet meant for 5" deep US crib sized mattresses. (In most cases, crib sheets fit both 5" and 6" mattresses).

  • What is the difference between the contour changing table pads and flat changing table pads?

    The contour changing table pad has two raised sides, a safety belt, and a security strap to attach to your dresser. The flat changing table pad is 1 or 2” thick, with no strap.

  • Can Moonlight Slumber make custom crib mattress sizes?

    Yes. Our mattresses are domestically made, right in the heart of Illinois, so we have complete control over the production lines. We can create custom crib, cradle and bassinet mattresses at your request. Please contact to discuss.

  • What is the best way to clean a Moonlight Slumber mattress?

    Moonlight Slumber recommends the following method to clean a mattress: simply use a damp sponge and warm soapy water when necessary to clean a mattress. Avoid harsh chemicals. Please do not use diaper wipes or household cleaning wipes to clean the mattress. They are convenient, but, over time, they will break down the fabric surface leaving your mattress looking worn.

  • What is the approximate weight of a Moonlight Slumber mattress?

    Here are a sampling of mattress weights. Please see each item for its own specific weight and dimensions.

    • Starlight Simplicity– 26 lbs
    • Starlight Supreme (all foam) – 10.5 lbs
    • Little Dreamer – 8 lbs
    • Little Star - 8.5 lbs
  • Will a Moonlight Slumber mattress fit my crib?

    Moonlight Slumber crib mattresses are made to fit standard US crib sizes. They are all 27.5" wide by 52" long with a .25" allowable variance. Depths vary by model. Contact your furniture manufacturer to verify if this size mattress is appropriate for your crib model.

    Custom sizes are available if you are looking to fit a European, heritage, or non-standard shape or size. Contact to learn more.

  • How will I know that my pillow is an original Comfort-U Pillow?

    If you purchase your pillow from Moonlight Slumber, Comfort-U Pillow, University Sleep, you can rest assured that you’ve purchased an original Comfort-U Pillow®. If purchased outside of these site, you can check your pillow’s law tag. If it says that it is made by Moonlight Slumber, you have the original item.