Using same pin for sleep and wake up

[thesoftwareengineer]

I am using SDK 15.2 with Segger Studio 4.10

I am trying to use the same button for sleep mode and wake up. I am doing a long press for sleep and sense wake up.

I am able to put it into sleep mode, but as soon as I let go it wakes up, is there something I can do to delay it, or lacth it for when it goes to sleep?

Here is the snippet for what I am doing.

void button_timerout_handler(void * p_context) {
  uint32_t err_code;
  static uint32_t cnt;

  if(app_button_is_pushed(0)) {
    cnt++;
    if(cnt >= LONG_PRESS(LONG_PRESS_WAIT)) {
      cnt = 0;
      NRF_LOG_INFO("Long Press");
      
      // prepare wake up button
      nrf_gpio_cfg_sense_input(BUTTON_PIN_4, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);

      // Go to system-off mode (this function will not return; wakeup will cause a reset).
      err_code = sd_power_system_off();
      APP_ERROR_CHECK(err_code);

    }
    else {
      err_code = app_timer_start(m_button_action, 
                                 APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                                 NULL);
      APP_ERROR_CHECK(err_code);
    }
  }
  else {
    cnt = 0;
    NRF_LOG_INFO("Short Press");
  }
}

static void button_event_handler(uint8_t pin_no, uint8_t action) {
  uint32_t err_code;
  if((pin_no == BUTTON_PIN_4) && (action == APP_BUTTON_PUSH)) {
    err_code = app_timer_start(m_button_action,
                             APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                             NULL);
    APP_ERROR_CHECK(err_code);
    NRF_LOG_INFO("Button Pressed!");
  }

}

static const app_button_cfg_t buttons[NUM_BUTTONS] = {
  {BUTTON_PIN_4, APP_BUTTON_ACTIVE_HIGH, NRF_GPIO_PIN_PULLUP, button_event_handler},
};

static void button_init(void){
  uint32_t err_code;

  err_code = app_button_init((app_button_cfg_t *)buttons, NUM_BUTTONS, BUTTON_DELAY);

  APP_ERROR_CHECK(err_code);

  err_code = app_button_enable();

  APP_ERROR_CHECK(err_code);

  // Enable timer for long button press detect
  err_code =  app_timer_create(&m_button_action, APP_TIMER_MODE_SINGLE_SHOT, button_timerout_handler);
  
  APP_ERROR_CHECK(err_code);
}

Thank you for the help.