A cuddler is someone who likes to cuddles.
Everyone enjoys a good hug once in a while. Even better than a hug is cuddle, where one holds another in an affectionate but for a longer duration than a hug. Two people who are intimate with each other will often cuddle together to show love and affection to the other person. Similarly, a mother often cuddles her child.
A cuddler is a basically a person who likes to cuddle; someone who likes to be held for comfort and affection. A person who likes to cuddle often is often called a cuddler. According to some, cuddling has been proven to lower blood pressure, lift serotonin levels, balance the nervous system and strengthen the immune system. So, cuddling is beneficial for one’s health.
At times, when you are feeling down, it is nice to have someone hold you and tell you that everything is okay, it just reminds you of the childhood days gone where your mother would hold you and make everything better. Due to this, there are some professional cuddlers out there, who charge to cuddle with strangers. While their fees wary, they only cuddle and no sexual activity is involved.
Another trend these days is of a cuddle party, where people can get together in a friendly environment and cuddle together. Again, no sexual activity is involved. The party just allows people to "give and receive welcomed affectionate touch in a no-expectation, friendly setting, according to your needs, desires, interests, and boundaries." The intention is to “experience non-sexual group physical intimacy through cuddling.”