Is the word pijamas the same in Brazilian and European Portuguese?

Yes

The word "pijamas" is spelled identically and carries the exact same meaning in both Brazilian and Continental Portuguese. The only difference is in pronunciation. In Brazilian Portuguese, the vowels are typically more open and the pronunciation is more melodic (syllable-timed). In Continental Portuguese, the vowels are more closed or neutralized, and the rhythm is more stress-timed.

Brazilian Portuguese Examples

1. Eu adoro usar meus pijamas de seda. (I love wearing my silk pajamas.)
2. Onde você guardou os pijamas novos? (Where did you store the new pajamas?)
3. As crianças estão usando pijamas coloridos. (The children are wearing colorful pajamas.)
4. Você viu os pijamas do seu irmão? (Did you see your brother's pajamas?)
5. Eu estou comprando pijamas para a viagem. (I am buying pajamas for the trip.)

Continental Portuguese Examples

1. Eu adoro os meus pijamas de seda. (I love my silk pajamas.)
2. Onde é que guardaste os pijamas novos? (Where did you store the new pajamas?)
3. As crianças estão a usar pijamas coloridos. (The children are wearing colorful pajamas.)
4. Viste os pijamas do teu irmão? (Did you see your brother's pajamas?)
5. Estou a comprar pijamas para a viagem. (I am buying pajamas for the trip.)