Can I Sleep On My Lull Mattress Right Away? What To Expect After Unboxing

If you’ve just unboxed a new bed-in-a-box and you’re wondering, “Can I sleep on my Lull mattress right away?”, you’re not alone. Many people want to know if it’s safe, comfortable, and practical to use a freshly unwrapped foam mattress on the very first night.

This FAQ-style guide explains what typically happens after unboxing, how long these mattresses usually take to expand, and what you can realistically expect on night one.

Can I Sleep On My Lull Mattress Right Away After Unboxing?

In most cases, you can lie on and sleep on a new compressed foam mattress the same day you unbox it. These mattresses are designed to begin expanding as soon as they are removed from the plastic packaging, and light use usually does not harm the materials.

However, there are a few points to keep in mind:

The mattress may not be at its full height or firmness within the first few hours.
Some people notice a temporary “new mattress smell” right after opening.
Comfort can improve over the first 24–72 hours as the foam fully expands and relaxes.

If you’re sensitive to smells or want to experience the mattress at its best, you might choose to let it air out before sleeping on it. But from a general usability standpoint, sleeping on it right away is usually possible.

How Long Does It Take For a New Foam Mattress To Fully Expand?

Most compressed foam mattresses are designed to reach most of their shape within a few hours and continue to fine-tune their feel over a day or two.

Common expectations:

First 2–4 hours: Mattress visibly rises and becomes usable for sitting or lying down.
First 24 hours: Height and firmness get closer to their final state.
Up to 48–72 hours: Minor changes in feel may still occur as materials finish settling.

Even if you can sleep on your Lull mattress right away, it may feel slightly softer, firmer, or thinner than expected on the first night. This is usually temporary as the foam decompresses.

Is It Safe To Sleep On a Newly Unboxed Mattress?

Most bed-in-a-box mattresses are made to be slept on safely once they are fully unwrapped and lying flat. The key safety considerations are practical:

Ensure all plastic packaging is removed so it can expand properly.
Place it on a stable, supportive foundation so it doesn’t sag or shift.
Allow at least some airflow in the room to help any initial odors dissipate.

If you notice a light chemical or “factory” smell, this is commonly due to the manufacturing and packaging process. Many sleepers find that opening a window or running a fan for a few hours helps the smell fade faster.

Will Sleeping On It Right Away Affect Its Performance Or Durability?

Light to normal use on the first night usually does not harm a foam mattress. These products are designed to withstand body weight and pressure from the start.

Still, there are a few practical tips:

Avoid jumping or heavy pressure on the mattress while it’s still expanding.
Give the foam time to fully expand at the corners, which can take a bit longer.
Expect some minor cosmetic wrinkles or compressed areas that typically smooth out.

Overall, using the mattress for normal sleep right away is unlikely to impact its long-term performance in a noticeable way.

What If My Mattress Still Looks Flattened Or Uneven?

Sometimes, a newly unboxed mattress doesn’t look perfectly even at first. Common early concerns include:

The corners look squished or rounded

This is typical for rolled and boxed foam mattresses. Corners often fill out more slowly and may take up to a couple of days to look fully squared.

The mattress height seems shorter than advertised

During the first few hours, height can be slightly below the stated measurement. Re-check it after 24–72 hours on a flat, supportive surface.

The surface feels firmer or softer than expected

Foam mattresses often soften slightly with use and time. Your body also needs a few nights to adjust to a new sleeping surface, especially if you’re coming from a very different type of mattress.

How Can I Get the Best First-Night Experience?

If you’re planning to sleep on your Lull mattress right away, these simple steps can help:

Unbox it in the room where it will be used, directly onto the bed frame or foundation.
Remove all packaging and let it start expanding before adding bedding.
Wait a few hours before bedtime if your schedule allows.
Air out the room with an open window or fan if odors bother you.
Use a breathable mattress protector and sheets to keep the surface comfortable.

These habits support both comfort and cleanliness without affecting normal expansion.

✔️ Quick Mattress Takeaways

Key points consumers should understand about Can I Sleep On My Lull Mattress Right Away

Yes, you can generally sleep on it the first night as long as it’s fully unwrapped and on a proper base.
Full expansion takes time—often up to 24–72 hours for the mattress to reach its intended feel and height.
A temporary new-mattress smell is common; ventilation helps it fade more quickly.
Normal sleeping won’t usually damage a mattress that’s still expanding, though heavy stress is best avoided early on.
Uneven corners or slightly reduced height in the first day are typical and often improve with time.
Allowing a few hours of expansion before use can provide a more comfortable first-night experience, but it’s not strictly required.

With realistic expectations about expansion, smell, and early feel, you can decide whether to sleep on your mattress immediately or give it a bit more time to settle before your first full night.