Go bed: Go bed is not a single word, it is just an abbreviation of the verb phrase "go to bed", which means "Go to sleep".

Gotobed:gotobed is the complete form of the verb phrase "gotobed", which also means "sleeping".

Comparison of grammar and usage differences;

Gobed is the abbreviation of "going to bed", which is equivalent to the abbreviation or abbreviation in spoken language. Usually used in informal situations, such as chatting between friends or social media.

Gotobed is a complete form of "going to bed", which is more commonly used in formal context or written language.

Examples of specific usage:

Go to bed: "I'm so tired, I'm going to bed now." I'm so tired, I'm going to bed. )

Gotobed: "I always go before 1 1 in the afternoon." I always go to bed before 1 1 in the afternoon. )

Summary of differences:

Gobed is the abbreviation of "going to bed", which is usually used in informal spoken or written language.

Gotobed is a complete form of "going to bed", which is often used in formal occasions or written language.

Gobed is more common in everyday spoken language or social media than gotobed.

Generally speaking, there is not much difference between the two, but one is an abbreviated form and the other is a complete form. You can choose to use one of them according to different occasions. If it is in an informal context or social media, you can use gobed；; If it is a formal occasion or written language, it is recommended to use gotobed.