How Long Do You Have To Let A Nectar Mattress Expand?

How Long Do You Have To Let A Nectar Mattress Expand?

When you first unbox your Nectar mattress, you should allow it to expand for at least 24 to 72 hours before sleeping on it to let it reach its full shape and optimum comfort level. However, some users find that waiting up to a week yields the best results in regard to comfort and support.

Why Does a Nectar Mattress Need Time to Expand?

The expansion period is crucial because Nectar mattresses are vacuum-sealed and compressed for shipping. This makes it easier to transport but also means the mattress needs time to revert to its intended size and shape. Allowing the mattress ample time to expand ensures that the foam layers inside fully inflate and the memory foam can contour properly to your body, providing the best sleeping experience.

What Happens During the Expansion Period?

When you cut open the vacuum-sealed package, the mattress begins to draw in air and swell back to life. The multiple layers of foam inside start to regain their shape and structure. This process can cause the mattress to feel softer or firmer over time as it fully expands.

Nectar mattresses usually consist of several foam layers, including adaptive memory foam, gel memory foam, and a dense support core. Each of these layers needs to fill out completely to offer optimum support and comfort.

The Initial Hours

In the first few hours after unboxing, the mattress will inflate significantly but might not reach its full height. You might notice that the corners of the mattress appear misshaped or squished. This is perfectly normal and tends to resolve itself within the first 24 to 48 hours.

The First 24 Hours

Within the first 24 hours, you will see a substantial difference. The mattress should reach close to its full size, and any odd shapes or wrinkles should smooth out. The memory foam layers will start to fully decompress, making the mattress ready for a test run.

The Next 72 Hours

Although the mattress is largely usable after the first 24 hours, waiting the full 72 hours is recommended. During this additional time, the foam completely fills out, achieving the firmness and support it was designed to offer.

Factors That Can Influence the Expansion Time

Several factors can impact how quickly your Nectar mattress expands. One of the most significant is room temperature. Memory foam reacts to temperature, expanding faster in a warm room and slower in a colder environment.


Memory foam tends to be more pliable and expands quicker in warmer temperatures. If you unbox your mattress in a colder room or during winter, you might find that it takes longer to reach its full size. To mitigate this, you might consider increasing the room temperature somewhat to help the foam expand more rapidly.


Humidity levels can affect the foam’s ability to draw in air and expand. Higher humidity aids in quicker expansion, while low humidity can slow down the process. If you live in an arid climate, don’t worry. Just give your mattress a bit more time to fully decompress.

Proper Ventilation

Adequate airflow around the mattress also matters. Placing the mattress in a well-ventilated room allows quicker air absorption, speeding up the expansion. Ensure that the room has good air circulation, which helps facilitate the process.

How to Speed Up the Expansion Process

If you’re in a hurry to start using your Nectar mattress, there are a few steps you can take to speed up the expansion process. Place the mattress in a warmer room and ensure that it has good air circulation. Keep the windows open if possible or use a fan to aid in air movement. You can also try gently walking on the mattress surface to help accelerate the airing out process.

However, avoid applying too much pressure, as excessive force might cause uneven expansion or potentially damage the layers.

The “New Mattress Smell”

As your Nectar mattress expands, you might notice a faint odor commonly referred to as “off-gassing.” This is a normal aspect of unboxing memory foam products. The smell results from the release of volatile organic compounds (VOCs) that were trapped inside during manufacturing and packaging.

Off-Gassing Explained

Off-gassing typically poses no health risks and should dissipate within a few hours to a few days as the mattress fully airs out. While it can be somewhat bothersome initially, this smell is temporary and will not affect the long-term performance of your mattress.

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Mitigating the Smell

To help speed up the off-gassing process, ensure good room ventilation. Open windows and doors to promote airflow, and consider using an air purifier if the scent is particularly bothersome. Once the VOCs have fully evaporated, your mattress will be scent-free and ready for a comfortable night’s sleep.

Why Waiting Matters for Warranty and Return Policies

Most mattress warranties, including Nectar’s, recommend allowing the mattress to expand fully before use to ensure it performs as promised. If you sleep on your mattress before it has fully expanded and experience discomfort or other issues, those problems might not be covered under warranty.

Furthermore, should you decide to return your mattress, ensuring it has had ample time to expand and air out could affect the ease of your return process. The company may require you to keep the mattress for a minimum period (usually 30 days) before initiating a return. This period allows both the mattress and your body to adapt, giving you a better understanding of whether it meets your individual needs.

How Usage Affects Mattress Longevity

Allowing the mattress ample time to expand fully can also influence its longevity. Using the mattress before it has completely inflated might create permanent indentations or uneven wear. Ensuring full expansion preserves the integrity of the mattress layers, which directly contributes to its lifespan.

Consistent Support

Nectar mattresses are engineered to provide consistent support and pressure relief. Full expansion ensures that the foam layers settle evenly, enhancing the mattress’s ability to support your body weight uniformly. This balanced support reduces the chances of sagging or indentations over time.

Enhanced Comfort

Waiting the full recommended period allows the foam to regain its intended density and softness. Memory foam is known for its contouring properties, which offer superior comfort by conforming to your body shape. Ensuring the mattress has fully expanded allows you to reap these benefits.

Common Myths and Misconceptions

There are a few common myths surrounding the expansion period of memory foam mattresses. One misconception is that the mattress is ready to use as soon as it pops out of the box. While it may appear usable, its comfort and support levels will not peak until a few days have passed.

Some people believe that walking on the mattress or placing heavy objects on it will speed up the expansion process. While gentle pressure can help, be cautious to not exert excessive force that could damage the foam layers.

What to Expect After the Expansion Period

Once the expansion period is complete, your Nectar mattress will be ready to deliver its full range of benefits. The memory foam layers will be set and ready to provide the ergonomic support and cushioning Nectar is known for.

Settling In Period

Even after the mattress has fully expanded, there might be a short period where it continues to settle. Your body may also require some time to adjust to the new mattress. It’s common for it to take a few nights for you to experience the optimal comfort and support levels.

Long-Term Maintenance

To maintain the longevity and comfort of your Nectar mattress, consider rotating it 180 degrees every few months. Although memory foam is designed to retain its shape and support, regular rotation helps evenly distribute wear and extend the mattress’s lifespan.

Finishing Thoughts

Allowing your Nectar mattress sufficient time to expand is essential for maximizing its performance, comfort, and durability. A minimum of 24 to 72 hours is recommended, though giving it a full week can yield the best results. Factors such as room temperature, humidity levels, and proper ventilation can significantly influence this expansion period.

While the slight inconvenience of waiting for your mattress to fully inflate might seem daunting, doing so ensures you receive the full benefits of your new Nectar mattress. Patience during this initial period will reward you with a comfortable, supportive, and long-lasting sleep surface that enhances your overall sleep quality.

Taking the time to understand these considerations and follow recommended guidelines can lead to a more satisfying mattress experience, helping you to invest wisely in your sleep.


  • Ashton Roberts

    I love learning and sharing everything about sleep. I am one of the energetic editors here at GoodSleepHub, where I talk about how to get a better night's sleep. When I'm not writing, I'm probably walking my dog Luna or trying out new sleeping gadgets. My goal is to help you sleep easier and better. Join me, and let's find simple ways to enjoy great sleep every night!

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