Can You Sleep On Lull Mattress Right Away? What To Expect When It Arrives

If you’ve just unboxed a new foam mattress and you’re wondering “Can You Sleep On Lull Mattress Right Away?”, you’re not alone. Many people want to know if it’s safe, comfortable, and practical to use a bed-in-a-box mattress the very first night.

Below is a clear FAQ-style guide that explains what typically happens after unboxing a foam mattress, how long it takes to expand, and what’s realistic when you lie on it right away.

Can You Sleep On Lull Mattress Right Away After Unboxing?

In most cases, yes, you can sleep on a foam mattress shortly after it’s been unpacked and allowed to expand enough to lie flat.

Mattresses that arrive compressed in a box are designed to return to their intended shape once the packaging is removed. Many users place their sheets on the mattress the same day and sleep on it that night.

However, there are a few important details to understand:

  • The mattress often reaches usable size within a few hours, but
  • It may continue to firm up, expand, and “settle” over the next day or two
  • Some people notice a temporary new-foam smell during this time

So when asking “Can You Sleep On Lull Mattress Right Away?”, the practical answer is that you usually can, as long as it has expanded enough to support your body evenly and lies flat on the bed frame.

How Long Does It Take a Foam Mattress to Fully Expand?

Typical expansion timeline

Foam mattresses usually:

  • Rise quickly in the first few minutes to hours
  • Continue to gradually expand and stabilize over the next 24–48 hours

It’s common for manufacturers to suggest waiting up to a day for full performance and feel, but this doesn’t always mean you must wait that long to sleep on it.

Does sleeping on it slow down expansion?

Many people sleep on their mattress while it’s still completing the last stages of expansion. In general:

  • Light to normal use (lying down, sitting briefly) usually does not prevent full expansion.
  • The mattress may feel a bit softer or thinner in certain areas right after unboxing, then become more consistent over time.

If you are concerned, you can let the mattress rest for a few hours before putting full weight on it, then check again that it’s fully expanded at the edges and corners.

Is It Safe to Sleep on a New Foam Mattress Immediately?

When considering “Can You Sleep On Lull Mattress Right Away”, safety questions often come up.

Off-gassing and initial odor

Many new foam mattresses release a mild chemical or “factory” smell when first unwrapped, sometimes called off-gassing. While experiences vary, common consumer reports include:

  • A noticeable but fading odor in the first hours or days
  • Smell that is stronger in small or poorly ventilated rooms
  • Odor that usually diminishes with fresh air and time

To make yourself more comfortable:

  • Open a window or door to air out the room
  • Leave the mattress uncovered for a few hours before adding bedding, if possible
  • If you’re sensitive to smells, consider airing it out during the day and using it at night once the odor has reduced

Will Sleeping on It Right Away Affect Comfort or Durability?

Short-term comfort

Right after unboxing, a foam mattress might:

  • Feel slightly firmer or softer than expected for the first night or two
  • Have edges or corners that look less rounded until fully expanded
  • Change feel slightly as the foams relax and settle with use

This early adjustment period is normal. Many sleepers report that comfort becomes more consistent after several nights.

Long-term durability

Light use during the first 24 hours is not commonly associated with long-term damage. These mattresses are built to handle body weight regularly. Most concerns are about initial feel, not structural harm.

If you notice deep indentations or uneven expansion that do not improve after a day or two, that may be a sign to inspect the setup (foundation, slats, or surface) and ensure the mattress has enough support.

What Should You Do Before Sleeping on It the First Night?

If you decide yes to “Can You Sleep On Lull Mattress Right Away,” a few simple steps can make the experience more comfortable:

  • Give it a few hours to expand so it can reach near-full size
  • Check for flatness – make sure there are no major dips or folded areas
  • Use a supportive base – a flat, stable frame or platform helps the foam perform as intended
  • Air out the room – open windows or doors to reduce new-mattress odor
  • Add breathable bedding – lightweight sheets and a breathable mattress protector can help with temperature and comfort

✅ Quick Mattress Takeaways

Key points consumers should understand about “Can You Sleep On Lull Mattress Right Away”

  • Yes, you can usually sleep on a boxed foam mattress the first night as long as it has expanded enough to lie flat and support you.
  • The mattress often reaches usable shape within hours, but may need 24–48 hours to fully expand and feel its best.
  • A temporary new-foam smell is common; ventilation helps it fade more quickly.
  • Sleeping on it right away typically affects short-term feel more than long-term durability.
  • For the best first-night experience, allow some expansion time, check the surface, and use a solid, supportive base.

With these points in mind, you can decide comfortably for yourself whether to sleep on your new mattress right away or give it a little extra time to settle.