The islanders are bidding for more of the same at Sevilla tomorrow after earning their first win of 2013 when Tomer Hemed's last-minute strike secured a 2-1 victory at Estadio Nuevo Los Carmenes.
The result snapped an eight-game winless run for Gregorio Manzano's troops stretching back to a 2-1 triumph over Real Betis on December 22.
"The week after a victory is completely different, everything changes. People have a different look on their faces, everyone is in a good mood and there is renewed confidence," Bigas said.
"It's not the same as when you lose a game and have to face the week. When you are more confident things go better for you and the team is in a better mood.
"The truth is that we will go into the game with Sevilla in good shape."
Mallorca nevertheless remain second-bottom of La Liga, four points from safety with 12 games remaining, and Bigas is determined last week's win will not be a false dawn.
"We have to think that in order to make last week's win worth it we need to have successive victories," he added.
Sevilla climbed to 10th place with Monday's 4-1 win over Celta Vigo and will be eyeing more of the same tomorrow after showing an improvement in form in recent weeks.
The Andalusian club have won four and lost two of their last six league games, but those defeats came away to Barcelona and Real Madrid.
Geoffrey Kondogbia's performances in the heart of Sevilla's midfield have been an important part of that sequence, and the Frenchman admitted this week that he chose to join the Spanish side last summer ahead of Italian giants Juventus.
"I knew about the offer from Juventus and also the interest from Sevilla and I opted to come here because they showed a greater interest in me and I knew I'd have more opportunities to play here," the highly-rated 20-year-old said.
Kondogbia's future has been the subject of media speculation with Manchester City one of a host of clubs linked with his services, but he refused to be drawn on whether he saw himself staying at the Ramon Sanchez Pizjuan next season.
"We have a very important objective [qualifying for the Europa League] and I am only focused on helping the team achieve that," he said.
Sevilla centre-back Fazio is a doubt for the trip to Mallorca after suffering a chest injury in the victory over Celta.