Mattress Depth
Buying Guide

When shopping for a new mattress, one of the factors that can be overwhelming is the mattress depth. Mattress depths can vary from 6 inches to 20 inches, and each depth serves a specific purpose. In this guide, we'll explore mattress depths and what they mean.

First, it's important to understand that mattress depth refers to the height of the mattress, including the comfort layers and support core. The standard depth for most mattresses is between 9 and 12 inches. However, with the rise of specialty mattresses, such as memory foam and hybrid mattresses, depths have increased.

A 6-8 inch depth mattress is often referred to as a slim mattress. These mattresses are suitable for children, bunk beds, and daybeds. They provide a firm sleeping surface and are often made of foam, making them lightweight and easy to move.

A 9-12 inch depth mattress is the standard depth and is suitable for most adults. These mattresses are often made of innerspring coils or foam layers, providing adequate support and comfort. They are available in varying firmness levels, making them versatile for different sleeping positions.

A 13-15 inch depth mattress is considered a luxury mattress. These mattresses often have extra comfort layers, such as pillow tops, and are made with high-density foam or pocketed coils. They provide superior comfort and support and are perfect for side sleepers or those with chronic pain.

A 16-20 inch depth mattress is considered an ultra-luxury mattress. These mattresses often have multiple comfort layers and are made with premium materials such as latex or memory foam. They provide the ultimate sleeping experience with maximum comfort and support. They are also suitable for those with chronic pain or pressure points.

Mattress thickness

It's important to note that the depth of the mattress alone does not determine the level of comfort and support. Other factors, such as the quality of the materials and the construction, also play a crucial role. It's also essential to consider the type of bed frame or foundation you will be using with your mattress to ensure proper support and longevity.

What is standard mattress depth?

The standard depth for most mattresses is between 9 and 12 inches. However, with the rise of specialty mattresses, such as memory foam and hybrid mattresses, depths have increased. It's important to note that while 9-12 inches is the standard depth, the depth alone does not determine the level of comfort and support. Other factors, such as the quality of the materials and the construction, also play a crucial role in determining the overall comfort and support of a mattress.

How thick should a mattress be?

The thickness of a mattress can vary depending on personal preferences, body type, and sleeping position. Generally, a mattress thickness of 10-12 inches is suitable for most people. This thickness typically provides adequate support and comfort for various sleeping positions and body types. However, if you have specific needs, such as chronic pain or pressure points, a thicker mattress may be necessary to provide the necessary support and comfort. In general, it's recommended to choose a mattress thickness that is at least 8 inches thick to ensure adequate support and comfort.

Why choose a deeper mattress?

Choosing a deeper mattress can offer several benefits. Firstly, a deeper mattress typically has more comfort layers, which can provide enhanced cushioning and support. This can be especially beneficial for people with chronic pain or pressure points, as the extra padding can help relieve pressure and reduce pain. A deeper mattress can also provide a greater sense of luxury and comfort. The added height can give the mattress a more substantial, plush feel, which can be especially appealing for people who enjoy a soft, cosy sleeping surface.

A deeper mattress can be beneficial for larger individuals or couples. The extra depth can provide additional support and prevent sagging or sinking, which can be a common issue with thinner mattresses for people with larger body types.

Is it better to have a thicker mattress?

While a thicker mattress can provide some benefits, it's not necessarily better than a thinner mattress. The thickness of a mattress does not always indicate its quality or level of comfort and support. It's more important to focus on the materials and construction of the mattress.

That being said, a thicker mattress can provide some advantages. A thicker mattress often has more comfort layers, which can provide enhanced cushioning and support. This can be especially beneficial for people with chronic pain or pressure points. A thicker mattress can also provide a more luxurious feel and may be preferred by some people who enjoy a softer, plush sleeping surface. However, a thicker mattress may not be suitable for everyone. For example, people who prefer a firmer sleeping surface may find a thicker mattress too soft. Additionally, a thicker mattress may not be necessary for people with smaller body types or who don't have specific support or comfort needs.

Why choose a thinner mattress?

Which mattress depth is right for me?

Choosing the right mattress depth depends on several factors, including your body type, sleeping position, and personal preferences. Here are some general guidelines to help you choose the right mattress depth:
Body type: If you're a larger individual, you may benefit from a thicker mattress that can provide additional support and prevent sagging or sinking. However, if you're a smaller individual, a thinner mattress may be more comfortable for you.
Sleeping position: Your sleeping position can also influence the ideal mattress depth for you. For example, side sleepers may prefer a thicker mattress with more cushioning to relieve pressure points, while back and stomach sleepers may prefer a thinner, firmer mattress.
Personal preferences: Ultimately, your personal preferences should also be taken into consideration. Some people prefer a thicker, more luxurious mattress, while others prefer a thinner, firmer mattress.

It's important to note that the thickness of a mattress alone doesn't determine its level of comfort and support. Other factors, such as the quality of the materials and construction, also play a significant role. Therefore, it's important to choose a mattress that provides the right balance of comfort and support for your individual needs and preferences. To determine which mattress depth is right for you, consider your body type, sleeping position, and personal preferences, and try out different mattresses to find the one that feels most comfortable and supportive for you.

What to consider when deciding on a thicker mattress?

Support and comfort: A thicker mattress typically has more comfort layers, which can provide enhanced cushioning and support. However, it's important to choose a mattress that provides the right level of support and comfort for your individual needs and preferences. Consider factors such as your body type, sleeping position, and any specific health concerns when selecting a thicker mattress.
Bedding and accessories: A thicker mattress may require deeper fitted sheets, mattress protectors, and other bedding accessories. Make sure you have the appropriate bedding and accessories to fit your thicker mattress.
Bed frame: A thicker mattress may require a compatible bed frame or foundation to provide adequate support. Make sure your bed frame or foundation is compatible with the thickness of your mattress.
Room space: A thicker mattress can take up more space in your room, so make sure you have enough space to accommodate a thicker mattress comfortably.
Budget: Thicker mattresses are often more expensive than thinner ones, so consider your budget when selecting a thicker mattress.

How to measure mattress depth:

To measure the depth of a mattress, follow these steps:
1. Remove all bedding, including sheets, blankets, and mattress protectors, from the mattress.
2. Stand at one end of the mattress and place the end of a tape measure at the highest point of the mattress. This is usually the centre of the mattress.
3. Extend the tape measure down the side of the mattress, all the way to the bottom edge.
4. Read the measurement on the tape measure at the bottom edge of the mattress. This measurement is the depth of the mattress.
5. Repeat this process at various points around the mattress, as some mattresses can have slight variations in depth.

It's important to measure the depth of your mattress accurately to ensure you choose the right size fitted sheets and other bedding accessories. If you're unsure about the depth of your mattress, check the manufacturer's specifications or contact the manufacturer directly for assistance.

Ultimately, the best mattress for you will depend on your individual needs and preferences. It's important to consider factors such as the quality of the materials and construction, your sleeping position, and any specific health concerns when selecting a mattress, rather than focusing solely on the thickness.

Take a look at our extensive range of mattresses from Hypnos, Sleepeezee, and Baker & Wells, to Komfi, Millbrook, and Emma. There are plenty of options available to suit your needs.

We’re here to help, so if you're still unsure give our friendly team a call on 01642 686365 and ask for advice or take look at our other useful Mattress Buyer’s Guides below, to see if we can help you make the right mattress choice.