How Long For Nectar Mattress To Expand: What To Expect After Unboxing

If you’ve just unboxed a new foam mattress and are wondering “How Long For Nectar Mattress To Expand?”, you’re not alone. Many sleepers are unsure when the mattress is fully ready to use, what’s normal during expansion, and when to be concerned.

This FAQ-style guide explains how expansion works, how long it usually takes, and what to look out for so you can set up your mattress with confidence.

How long does it usually take a mattress like this to expand?

Most mattresses of this type are designed to reach their near-full size within a few hours after being removed from the packaging. However, it can take up to 24–72 hours for the foam to fully decompress and settle into its intended shape and feel.

A common experience is:

First 1–3 hours: Mattress rises quickly and becomes usable.
First 24 hours: Corners and edges continue to fill out.
Up to 72 hours: Foams finish relaxing, and the surface feel evens out.

You can often sleep on the mattress the first night, but it may continue to subtly expand and feel more consistent over the next day or two.

Why does it take time for the mattress to expand?

These mattresses arrive compressed, rolled, and packed in a box to make shipping easier. During this process:

The foam layers are tightly squeezed.
Air is pushed out of the material.
The mattress is wrapped to hold that compressed shape.

Once unboxed and unrolled, the foam reabsorbs air and returns to its original thickness. Different foams respond at different speeds, so some parts of the mattress may plump up faster than others. This is why:

The center may look fully expanded before
The corners and edges finish rounding out.

This gradual expansion is normal and expected.

Is it safe to sleep on the mattress before it fully expands?

In many cases, you can sleep on the mattress after a few hours, once it has noticeably risen and feels supportive enough for your body. However:

The surface may feel slightly firmer or uneven during the first day.
Height might be a bit lower than the listed profile until expansion is complete.

If you prefer the mattress to perform as close as possible to its intended feel, some sleepers like to wait the full 24 hours before using it. Others choose to sleep on it right away and simply allow the foam to finish expanding while in use.

What can affect how long it takes to expand?

Several everyday factors can influence How Long For Nectar Mattress To Expand or a similar mattress to reach full size:

Room temperature and airflow

Warmer rooms generally help foam expand more quickly.
Colder rooms can slow the process and make the foam feel stiffer at first.
Light airflow (open window or fan on low) may help the mattress air out and settle.

Time spent in the box

If the mattress has been stored compressed for an extended period, the foam may take a bit longer to bounce back. This doesn’t automatically mean something is wrong; it just may need extra time.

Foundation or surface

Placing the mattress on a flat, supportive base helps it expand evenly. Surfaces that are uneven, slatted too widely, or sagging can lead to:

Areas that appear lower or less expanded
A feel that is less consistent across the surface

What is normal during expansion – and what isn’t?

Some signs are typical and usually not a concern:

Slight wrinkling in the cover immediately after unrolling
Softer corners or edges that look a bit compressed at first
A faint “new mattress” smell that fades over a few days

Things that may warrant closer attention:

Large dents, dips, or folds that remain after 48–72 hours
One side or corner that is significantly lower than the rest over time
Noticeable tears, damage, or misaligned layers right out of the box

If you notice issues like these that don’t improve after allowing full expansion time, many consumers choose to contact customer support for guidance.

Do I need to remove plastic immediately?

Yes. To allow proper expansion:

Carefully remove all outer plastic and packaging.
Make sure nothing is constricting the sides or corners, such as tight sheets or heavy objects.

Leaving the mattress partially wrapped can delay expansion or cause the foam to expand unevenly.

How can I help the mattress expand more evenly?

You can’t truly “force” the foam to expand faster, but you can create good conditions for natural expansion:

🌀 Give it space: Clear the bed frame and avoid placing heavy items on the mattress for the first several hours.
🌡️ Keep the room comfortable: A moderate, stable room temperature can help the foam relax.
🛏️ Use a solid foundation: A flat, supportive base promotes even expansion and long-term support.

✔️ Quick Mattress Takeaways

Key points consumers should understand about How Long For Nectar Mattress To Expand

Initial expansion: Usually within a few hours of unboxing.
Full expansion: Often takes 24–72 hours for the mattress to reach its intended shape and feel.
Sleeping on it: Many people sleep on the mattress the first night, even while it continues to expand.
Environment matters:Room temperature, airflow, and time in the box can all influence expansion speed.
Normal signs: Slight odor, softer corners, and mild wrinkling tend to resolve with time.
When to watch: Persistent dips, uneven height, or visible damage after full expansion time may call for further inspection.

Understanding How Long For Nectar Mattress To Expand helps set realistic expectations and reduces worry during those first hours and days. With patience, a suitable setup, and a supportive foundation, most mattresses of this type reach their full size and feel within a fairly predictable window.