If you've recently upgraded your home, then you may be thrilled to finally have a dedicated spare room for accommodating guests. These guests may be friends or family, or you may plan on using the room to make some extra income as a listing on one of the accommodation share websites that are very common these days.

Whatever the purpose, making your guest bedroom as comfortable as possible is no doubt a priority. Here are the three most important inclusions that will take the room to the next level and ensure that your guests will pay you another visit.

1. A great bed

The first element in a truly welcoming guest bedroom is a great bed. Even if a guest's visit is only a short one, it can be dampened considerably if they aren't able to get a restful and comfortable night's sleep. Invest in a good quality mattress and some good quality linen. It's also a good idea to get a waterproof mattress protector to keep the mattress fresh and clean.

Unless your guest room is tiny, opt for a queen size bed at a minimum. Double beds don't generally provide an adequate amount of space for a couple sharing a bed. As a nice added touch, buy a small selection of pillows with different levels of firmness and volume for your guests to select from.

2. Temperature and light control

A sound night's sleep can be very dependent on having an optimal temperature and the right level of light control. This is particularly important if your guests are out of their time zone or regular seasons when they're visiting you. Depending on your location, you may need to install a small air conditioning unit so that the room can be heated or cooled as needed.

Blackout curtains or blinds are a great way to ensure that your guests can make the room adequately dark for their sleeping preferences. Insulated curtains can also help to dampen external noises that your guests may not be used to.

3. Storage space

It's very common for the wardrobe in guest bedrooms to become the repository for all manner of belongings that need a home. However, it's important that you keep a decent amount of space free for your guests to be able to stow their clothes, bags and other items in during their stay.

If you can't manage to keep the whole wardrobe empty, at least allow space for a few items of clothing to be hung up. You can then add a small chest of drawers or a dressing table to provide some extra storage space for your guests. For more information on buying a king size mattress, contact your local mattress store.